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EUROPEAN ETS 300 102-2

TELECOMMUNICATION December 1990

STANDARD

Source: ETSI TC-SPS Reference: T/S 46-31(CB)

ICS: 33.080

Key words: ISDN, layer 3, basic call control

Integrated Services Digital Network (ISDN);User network interface layer 3

Specifications for basic call controlSpecification Description Language (SDL) diagrams

ETSIEuropean Telecommunications Standards Institute

ETSI Secretariat

Postal address: F-06921 Sophia Antipolis CEDEX - FRANCEOffice address: 650 Route des Lucioles - Sophia Antipolis - Valbonne - FRANCEX.400: c=fr, a=atlas, p=etsi, s=secretariat - Internet: [email protected]

Tel.: +33 92 94 42 00 - Fax: +33 93 65 47 16

Copyright Notification: No part may be reproduced except as authorized by written permission. The copyright and theforegoing restriction extend to reproduction in all media.

© European Telecommunications Standards Institute 1990. All rights reserved.

ETS 300 102-2: December 1990

Whilst every care has been taken in the preparation and publication of this document, errors in content,typographical or otherwise, may occur. If you have comments concerning its accuracy, please write to"ETSI Editing and Standards Approval Dept." at the address shown on the title page.

ETS 300 102-2: December 1990

Contents

Foreword .......................................................................................................................................................5

1 Scope ..................................................................................................................................................7

2 Normative references..........................................................................................................................7

3 Explanation of symbols .......................................................................................................................7

4 User side and network side call states................................................................................................9

5 Network side SDLs - Overview..........................................................................................................105.1 Network side call states .....................................................................................................105.2 Network side SDLs - Block diagram ..................................................................................115.3 Network side SDLs - List of primitives ...............................................................................115.4 Network side SDL diagrams - Representation method .....................................................12

6 User side SDLs - Overview ...............................................................................................................156.1 User side call states...........................................................................................................156.2 User side SDLs - Block diagram........................................................................................166.3 User side SDLs - List of primitives.....................................................................................16

7 Graphical SDL diagrams ...................................................................................................................177.1 Network side SDL diagrams ..............................................................................................187.2 User side SDL diagrams....................................................................................................52

History..........................................................................................................................................................74

ETS 300 102-2: December 1990

Blank page

ETS 300 102-2: December 1990

Foreword

This European Telecommunications Standard (ETS) was produced by the Signalling, Protocols andSwitching (SPS) Technical Committee of the European Telecommunications Standards Institute (ETSI),and was adopted, having passed through the ETSI standards approval procedure.

This document is part 2 of a multi-part ETS, comprised as follows:

ETS 300 102-1: ISDN; User-network interface layer 3; Specifications for basic call control.

ETS 300 102-2: ISDN; User-network interface layer 3; Specifications for basic call control;Specification Description Language (SDL) diagrams.

ETS 300 102-2: December 1990

Blank page

ETS 300 102-2: December 1990

1 Scope

This ETS specifies, using SDL representation, the circuit-switched call control procedures of the DigitalSubscriber Signalling one (DSS1) as specified in clause 5 of ETS 300 102-1 [1].

In order to describe the point-to-multipoint operation of the protocol, the concept of a "global" processrunning in parallel with a number of "individual" (dynamic) processes in the network side has beenintroduced. This approach, and the associated definition of internal primitives is intended to provide acoherent description of the protocol and does not constrain implementations. The text description inclause 5 of ETS 300 102-1 [1] is definitive.

2 Normative references

This ETS incorporates by dated or undated reference, provisions from other publications. Thesenormative references are cited at the appropriate places in the text and the publications listed hereafter.For dated references, subsequent amendments to, or revisions of any of these publications apply to thisETS only when incorporated in it by amendment or revision. For undated references the latest edition ofthe publication referred to applies.

[1] ETS 300 102-1 (1990): "ISDN User-network interface layer 3; Specification forbasic call control".

[2] CCITT Recommendation Z.100 (1988): "Functional Specification andDescription Language (SDL)".

[3] CCITT Recommendation Q.931 (1988): "ISDN User-network interface layer 3Specification for basic call control".

3 Explanation of symbols

The symbols and abbreviations shown below are used within this description. A full description of thesymbols and their meaning and application is given in CCITT Recommendation Z.100 [2].

State symbol

Input symbol (event occurrence)

Output symbol (signal generation - which will lead to an associated eventoccurrence)

Save symbol (save event until compilation of a transition)

Task symbol

Decision symbol

Procedure call symbol

Transition option symbol (implementation option)

ETS 300 102-2: December 1990

Procedure start symbol

Procedure return symbol

Create request symbol (used to initiate an individual network side transaction)

Stop symbol (used to end an individual network side transaction)

Connection symbol

Used to mark an input or output which is local to the Layer 3 entity and which isrequired as a result of the representation approach adopted.

ETS 300 102-2: December 1990

4 User side and network side call states

This section shows which call states are applicable at the user and network sides during the variousphases of a call.

Table 1: Call states

Call phase Call state User Network

IDLE Null U0 N0

OUTGOING CALL

(from user)

Call initiated

Overlap Sending

Outgoing Call Proceeding

Call Delivered

U1

U2

U3

U4

N1

N2

N3

N4

INCOMING CALL

(to user)

Call Present

Overlap Receiving

Incoming Call Proceeding

Call Received

Connect Request

U6

U25

U9

U7

U8

N6

N25

N9

U7

N8

ACTIVE Active U10 N10

CALL CLEARING Disconnect Request

(clearing by the user)

Disconnect Indication

(clearing by the network)

Release Request

Call Abort

U11

U12

U19

---

N11

N12

N19

N22

RESTART PROCEDURE

(see NOTE)

Null

Restart

Resume Request

REST0

REST1

U17

REST0

REST1

N17

NOTE: These states relate to global call references and are applicable when the restartprocedures are used. They may exist in both user and network side.

ETS 300 102-2: December 1990

5 Network side SDLs - Overview

5.1 Network side call states

Table 2

Number Name

N0 Null

N1 Call Initiated

N2 Overlap Sending

N3 Outgoing Call Proceeding

N4 Call Delivered

N6 Call Present

N7 Call Received

N8 Connect Request

N9 Incoming Call Proceeding

N10 Active

N11 Disconnect Request

N12 Disconnect Indication

N15 Suspend Request

N17 Resume Request

N19 Release Request

N22 Call Abort

N25 Overlap Receiving

NOTE 1: Network side timers, and the states in which they run, are specified inClause 9 of ETS 300 102-1 [1].

NOTE 2: Events in each state which lead to normal call establishment and clearingare marked with the "+" symbol.

NOTE 3: The primitives which pass to and from the call control block are shown forguidance only and are not fully specified.

NOTE 4: Internal primitives are marked by "*". These are a result of therepresentation method that has been adopted.

ETS 300 102-2: December 1990

5.2 Network side SDLs - Block diagram

Call control Resource management

Procedurecall

Q.931 Protocol Control

Messages to/fromUser side

Data link layer

Physical layer

User-networkinterface

User

Blockdescribedby the SDLdiagrams

Primit ives

*

* not described inthe SDL diagrams

NOTE: Control of B-channels is described in these SDL diagrams as part of the CCITTRecommendation Q.931 [3] protocol block.

Figure 1

5.3 Network side SDLs - List of primitives

Table 3

From Call Control Block To Call Control Block

ALERTING REQUESTDISCONNECT REQUESTINFO REQUESTMORE INFO REQUESTNOTIFY REQUESTPROCEEDING REQUESTPROGRESS REQUESTREJECT REQUESTRELEASE REQUESTRESUME REJECT REQUESTRESUME RESPONSESETUP COMPLETE REQUESTSETUP REQUESTSETUP RESPONSESTATUS ENQUIRY REQUESTSUSPEND REJECT REQUESTSUSPEND RESPONSE

ALERTING INDICATIONDISCONNECT INDICATIONINFO INDICATIONMORE INFO INDICATIONNOTIFY INDICATIONPROCEEDING INDICATIONPROGRESS INDICATIONREJECT INDICATIONRELEASE CONFIRMRELEASE INDICATIONRESUME INDICATIONSETUP CONFIRMSETUP INDICATIONSTATUS INDICATIONSUSPEND INDICATIONTIMEOUT INDICATION

ETS 300 102-2: December 1990

5.4 Network side SDL diagrams - Representation method

In order to describe the point-to-multipoint operation of the protocol, the concept of a "global" processrunning in parallel with a number of "individual" (dynamic) processes in the network side has beenintroduced. This approach, and the associated definition of internal primitives, is intended to provide acoherent description of the protocol and does not constrain implementations. The text description inclause 5 of ETS 300 102-1 [1] is definitive.

Individual processes are used to track the responses of each terminal. The global (controlling) processruns in parallel with the (dynamically created/destroyed) individual process.

The global and individual processes communicate by means of internal primitives. These are related tolayer 3 message types and are defined in Table 4. The internal primitives represent instantaneous actions.Thus there is no possibility of errors caused by the cross-over of primitives.

The global process maintains a list of recorded Connection Endpoint Suffix (CES) values to enable it tomanage the individual processes. In this representation the global process also keeps a record of thestate of the individual process associated with each responding terminal. Additionally a "preselected" CESis recorded when one terminal responds with a CONNECT message and this becomes the "selected"CES when the terminal is awarded the call.

This solution is compatible with point-to-point working. In this case the global process never creates anyindividual processes.

Individual processes may exist in the following states:

N0 Null (processes are created in this state)N7 Call ReceivedN8 Connect RequestN9 Incoming Call ProceedingN19 Release RequestN25 Overlap Receiving

Two sets of SDLs are required for these states to show the global and individual processes.

The global process handles all communications with call control. Messages from individual terminals aresent to the individual process for that terminal if one exists (i.e. if the CES is recognised). Messages withan unrecognised CES are passed to the global process. Messages with the selected CES are also sent tothe global process.

ETS 300 102-2: December 1990

Table 4: Network side layer 3 internal primitives

PRIMITIVES NAME FROM TO MEANING

INT.ALERTING REQ

INT.CONNECT REQ

INT.CALL PROC REQ

INT.SETUP ACK REQ

Global Individual When global process receives ALERTING itstarts an individual process and sends itINT.ALERTING REQ etc

INT.ALERTING IND

INT.CONNECT IND

INT.CALL PROC IND

Individual Global Sent on receipt of ALERTING (etc).

END PROCESS Global Individual Sent when the global process terminates anindividual process

INT.RELEASE REQ Global Individual Instructs individual process to release terminal(e.g., for releasing non-selected terminals)

INT.RELEASE IND Individual Global Informal global process that a terminal hasbegun to release

INT.INFO REQ Global Individual Sent on receipt of INFO REQ

INT.INFO IND Individual Global Sent on receipt of INFO

INT.PROGRESS IND Individual Global Sent on receipt of PROGRESS

INT.REL.COMP.IND Individual Global Sent to indicate that the individual has cleared

NOTE: The global process should not release the call reference until all individual processeshave completed clearing.

Figure 2 (arrow diagram) shows an example of this representation method

ETS 300 102-2: December 1990

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ETS 300 102-2: December 1990

6 User side SDLs - Overview

6.1 User side call states

Table 5

Number Name

U0 Null

U1 Call Initiated

U2 Overlap Sending

U3 Outgoing Call Proceeding

U4 Call Delivered

U6 Call Present

U7 Call Received

U8 Connect Request

U9 Incoming Call Proceeding

U10 Active

U11 Disconnect Request

U12 Disconnect Indication

U15 Suspend Request

U17 Resume Request

U19 Release Request

U25 Overlap Receiving

NOTE 1: User side timers, and the states in which they run, are specified in Clause9 of ETS 300 102-1 [1].

NOTE 2: Events in each state which lead to normal call establishment/clearing areshown with the "+" symbol.

NOTE 3: Primitives passed to and from the call control (user application) block areshown for guidance only and are not fully specified.

ETS 300 102-2: December 1990

6.2 User side SDLs - Block diagram

Call control Resource management

Procedurecall

Q.931 Protocol Control

Messages to/fromUser side

Data link layer

Physical layer

User-networkinterface

Netw ork

Blockdescribedby the SDLdiagrams

Primit ives

*

* not described inthe SDL diagrams

NOTE: Control of B-channels is described in these SDL diagrams as part of the Q.931 [3]protocol block.

Figure 3

6.3 User side SDLs - List of primitives

Table 6

From Call Control Block To Call Control Block

ALERTING REQUESTDISCONNECT REQUESTINFO REQUESTMORE INFO REQUESTNOTIFY REQUESTPROCEEDING REQUESTPROGRESS REQUESTREJECT REQUESTRELEASE REQUESTRESUME REQUESTSETUP REQUESTSETUP RESPONSESTATUS ENQUIRY REQUESTSUSPEND REQUEST

ALERTING INDICATIONDISCONNECT INDICATIONERROR INDICATIONINFO INDICATIONMORE INFO INDICATIONNOTIFY INDICATIONPROCEEDING INDICATIONPROGRESS INDICATIONREJECT INDICATIONRELEASE CONFIRMRELEASE INDICATIONRESUME CONFIRMSETUP COMPLETE INDICATIONSETUP CONFIRMSETUP INDICATIONSTATUS INDICATIONSUSPEND CONFIRM

ETS 300 102-2: December 1990

7 Graphical SDL diagrams

This clause is separated into two parts:

7.1 Network side SDL diagrams (figures 4 - 40);

7.2 User side SDL diagrams (figures 41 - 62).

Figures 60 to 62, of subclause 7.2, show detailed SDL diagrams for the global call reference to be appliedto both user and network sides. Although these are drawn as user side only, the same diagrams can beapplied to the network side by changing the direction of the input and output symbols.

All references in the following diagrams are to ETS 300 102-1 [1].

ETS 300 102-2: December 1990

7.1 Network side SDL diagrams

0NULL

SETUP

ESTABLISH CR

CHNLSELECTIONSUCCESS

?

SETUPINDICATION

1

RESUME RELEASE STATUS OTHERMESSAGE

RELEASECOMPLETE

ESTABLISHCR

ESTABLISHCR

CS=0?

0

RESUMEINDICATION

RELEASECOMPLETE

17 RELEASECR

0

ESTABLISHCR

RELEASE

STARTT308

19

RELEASECOMPLETE

RELEASECR

0

0

NOTIFYREQUEST

SETUPREQUEST

INT REL *COMP

INDICATION(CES)

DELETECES

0

0RELEASE

INDICATIONSELECT

CR

CHNLSELECTIONSUCCESS

?

0 STARTT303

P-PSETUP

REQUEST?

SETUP(P-P)

6

STARTT312

SETUP(B/CAST)

6

NOTE 1.

NOTE 2.

NOTE 3.

THE USE OF THE CALL REARRANGEMENT PROCEDURE ISRESTRICTED TO BASIC ACCESS i.e. IT WILL NOT BEAVAILABLE FOR PRIMARY RATE ACCESS

THE EXPIRY OF T307 IS NOTSHOWN IN THESE SDL's AS ITRUNS IN THE CALL CONTROL BLOCK.

THIS INPUT MAY BE RECEIVEDFROM A TERMINAL COMPLETING CLEARINGIN A MULTIPOINT CONFIGURATION.THE CALL REFERENCE SHOULD NOT BE RE-USEDUNTIL ALL TERMINALS HAVE COMPLETEDCLEARING.

5.1.1 5.6.4 5.8.11 5.8.3 5.8.4

5.2.1

5.8.3.2(b)

+

NOTE 1

N

Y

+

NOTE 3

Y

N

Y

N

Y

N

+

Figure 4: Network Side SDL Diagram

ETS 300 102-2: December 1990

0INULL

INT *ALERTINGREQUEST

7I

INT *SETUP ACKREQUEST

INT *CONNECTREQUEST

STARTT304 8I

25I

INDIVIDUAL TERMINALINDIVIDUAL PROCESSESARE CREATED INTHIS STATE

IMPLEMENTATION OF TIMER T310 ININDIVIDUAL PROCESSES IS OPTIONAL.

NOTE 1.

INT *CALL PROCREQUEST

STARTT310

25I


STARTT304

19I

RELEASE

NOTE 1

Figure 5: Network side SDL diagram

+ +

1CALL

INITIATED

MOREINFO

REQUEST

STARTT302

SETUP ACK(B-CHNL)

CONNECTB-CHNL

ANYDIGITS

RECEIVED?

PROCEEDINGREQUEST

REJECTREQUEST

RELEASECOMPLETE DISCONNECT RELEASE

CALLPROCEEDING

(B-CHNL)

RELEASECOMPLETE

RELEASEB-CHANNEL IF

NOT RELEASED

DISCONNECTB-CHANNEL IFCONNECTED

RELEASEINDICATION

RELEASEINDICATION

DISCONNECTINDICATION

CONNECTB-CHNL

RELEASEB-CHANNEL

RELEASEB-CHANNEL IF

NOT RELEASED

RELEASECALL REF

RELEASECR3 11 RELEASE

COMPLETE

0 0 RELEASECR

0

TONEOPTION

?

CONNECTDIAL

TONE

2

2

5.1.3 5.1.5.1 5.3.2a 5.8.4 5.3.3 5.8.4

Y

N

Y

N


ETS 300 102-2: December 1990

5

2OVERLAPSENDING

INFOREQUEST

INFO

2

INFO SETUPRESPONSE

RELEASECOMPLETE

PROCEEDINGREQUEST

ALERTINGREQUEST

PROGRESSREQUEST

RELEASEREQUEST

STOPT302

STOPT302

STOPT302

STOPT302

STOPT302

STOPT302PROGRESS

RELEASEALERTINGCALLPROCEEDINGCONNECT

RELEASEB-CHANNEL IF

NOT RELEASED2

RELEASEB-CHANNEL IF

NOT RELEASED

STARTT308

19

4310 RELEASEINDICATION

RELEASECR

0

FIRSTINFO

MESSAGE?

STOP ANYAPPLIED

DIAL TONE

STARTT302

INFOINDICATION

2

TIMEOUTT302 DISCONNECT RELEASE DISCONNECT

REQUEST

ISCALL INFODEFINITELY

INCOMPLETE?

TIMEOUTINDICATION

CALLPROCEEDING

3

TONEOPTION

?


DISCONNECT(PI)

STARTTONE

STARTT306

DISCONNECT

STARTT305

12

STOPT302

STOPT302

STOPT302


RELEASEINDICATION TONE

OPTION?

RELEASEB-CHANNEL IF

NOT RELEASED

RELEASECOMPLETE

RELEASECR

0


DISCONNECT

STARTT305

12


11 DISCONNECT(PI)

STARTTONE

STARTT306

5.1.3 5.1.8 5.8.4 5.1.5.2 5.1.7 5.1.6

5.1.5.2 5.3.3 5.8.4 5.3.4

Y

+ + + +

N

Y

N

Y

N

Y

N


ETS 300 102-2: December 1990

5

3OUTGOING CALL

PROCEEDING

INFO INFOREQUEST

INFOINDICATION

3 3 4 10

INFO ALERTING CONNECT

ALERTINGREQUEST

SETUPRESPONSE DISCONNECT RELEASE



11

RELEASEINDICATION

RELEASEB-CHANNEL IF

NOT RELEASED

RELEASECOMPLETE

RELEASECR

0

DISCONNECTREQUEST

RELEASEREQUEST

RELEASECOMPLETE

RELEASEB-CHANNEL IF

NOT RELEASEDRELEASE

PROGRESSREQUEST

RELEASEINDICATION

RELEASECR

0

RELEASEB-CHANNEL IF

NOT RELEASED

STARTT308

19

TONEOPTION

?


DISCONNECT

STARTT306

DISCONNECT(PI)

STARTTONE

STARTT306

12

PROGRESS

3

5 5.1.7 5.1.8 5.3.3 5.8.4

5.3.45.8.4

+

5.1.6

+

N

Y


ETS 300 102-2: December 1990

+

4CALL

DELIVERED

PROGRESSREQUEST

PROGRESS

4 4 4 10

INFOINDICATION INFO CONNECT

INFO INFOREQUEST

RELEASECOMPLETE

RELEASEB-CHANNEL IF

NOT RELEASED


RELEASEINDICATION


DISCONNECT

RELEASECR 11

0

RELEASEREQUEST

DISCONNECTREQUESTRELEASE

RELEASEINDICATION RELEASE

RELEASEB-CHANNEL IF

NOT RELEASED

RELEASEB-CHANNEL IF

NOT RELEASED

STARTT308

19

RELEASECOMPLETE

RELEASECR

0

TONEOPTION

?


DISCONNECT

STARTT305

12

STARTT306

STARTTONE

DISCONNECT(PI)

5.1.6 5 5 5.1.8 5.8.4 5.3.3

5.8.4 5.3.4

SETUPRESPONSE

N

Y


ETS 300 102-2: December 1990

6CALL

PRESENT

RELEASECOMPLETE

WASSETUP

B/CAST ?

STOPT303

RELEASEINDICATION

RELEASEB-CHNL IF

NECESSARY

RELEASECR

0

SAVECAUSE

6

RELEASECOMP

6

WASSETUP

B/CAST ?

RELEASE

STOPT303

RELEASEINDICATION

RELEASECOMP

RELEASEB-CHNL IF

NECESSARY

RELEASECR

0

TIMEOUTT303

FIRSTTIMEOUT

?

WASSETUP

B/CAST ?

SETUP(P-P)

STARTT303

6

RELCOMP

RCVD ?

SETUPB/CAST

STARTT303

RESTARTT312

6

RELEASEB-CHNL IF

NECESSARY

WASSETUP

B/CAST ?


DISCONNECT

STARTT306

12

RELEASEINDICATION

22

INT *REL COMPINDICATION

(CES)

DISCONNECTREQUEST

STOPT303

STOPT303

RELEASEREQUEST

WASSETUP

B/CAST ?

RELEASE

STARTT308

RELEASEB-CHNL IF

NECESSARY

RELEASEINDICATION

22

19

WASSETUP

B/CAST ?

TONEOPTION

?


DISCONNECT(PI)

DISCONNECT

STARTT305

STARTTONE

STARTT306

12

DELETECES

6

NOTE 1.

NOTE 2.

REF. 5.2.5.4

THIS PRIMITIVE MAY BERECEIVED WHEN A TERMINALIS CLEARED DUE TO AN INVALIDCHNL ID IN RESPONSE TOTHE SETUP.

5.2.2 5.8.4 5.2.1

5.3.4

CONTD.

N Y

N

Y

Y

N

Y

N

N

Y

N

NOTE 2

N

Y

Y Y

Y

NOTE 1


ETS 300 102-2: December 1990

SETUPACK

WASSETUP

B/CAST ?

CHNLOK ?

CREATEPROCESS

(CES)

INT *RELEASEREQUEST

(CES)

6

STOPT303

MORE INFOINDICATION

CREATEPROCESS

(CES)


(CES)

STARTT304

25

STOPT303

MORE INFOINDICATION

STARTT304

25

CHNLOK ?

STOPT303

RELEASE

RELEASEINDICATION

STARTT308

19

CALLPROCEEDING

CREATEPROCESS

(CES)

WASSETUP

B/CAST ?

CHNLOK ?

STOPT303

STOPT303

STOPT303

CREATEPROCESS

(CES)

CHNLOK ?

INT *RELEASEREQUEST

(CES)

6

PROCEEDINGINDICATION

PROCEEDINGINDICATION RELEASE


(CES)

STARTT310

9

STARTT310

9

RELEASEINDICATION

STARTT308

19

CONTD

STATE 6 CALL PRESENT CONTD

N

Y

Y

Y

N

N

+

N

Y

Y

NY

+

N


ETS 300 102-2: December 1990

ALERTING

WASSETUP

B/CAST ?

CREATEPROCESS

(CES)

INT *RELEASEREQUEST

(CES)

6

STOPT303

ALERTINGINDICATION

CREATEPROCESS

(CES)


(CES)

STARTT301

7

STOPT303

STOPT303

ALERTINGINDICATION

STARTT301

7

RELEASE

RELEASEINDICATION

STARTT308

19

CHNLOK ?

WASSETUP

B/CAST ?

CREATEPROCESS

(CES)

STOPT303

STOPT303

CHNLOK ?

NOTE 1.

CONNECT INFOREQUEST

STOPT303

INT *RELEASEREQUEST

(CES)

6

SETUPCONFIRM

PRESELECTCES

CREATEPROCESS

(CES)

INT *CONNECTREQUEST

(CES)

8

SETUPCONFIRM

8

RELEASE

RELEASEINDICATION

STARTT308

19

CHNLOK ?

CHNLOK ?

T301 IS NOT USED IF THE NETWORK IMPLEMENTSANOTHER INTERNAL ALERTING SUPERVISIONTIMING FUNCTION.

5.2.5.2 5.2.7

STATE 6 CALL PRESENT CONTD

Y

+

Y

Y

N

N

Y

Y

N

Y

N

N

N

+

NOTE 1

NOTE 1


ETS 300 102-2: December 1990

NOTE 1

7CALL

RECEIVED

RELEASECOMPLETE

WASSETUP

B/CAST ?

7

STOPT301

IF RUNNING

RELEASEB-CHANNEL IF

NOT RELEASED

RELEASEINDICATION

RELEASECR

0

STATUS

7

WASSETUP

B/CAST ?

DISCONNECT

STOPT301

IF RUNNING

DISCONNECTB-CHANNEL IF

NOT RELEASED


11

INT REL COMP *INDICATION

(CES)

DELETECES

7

RELEASE

WASSETUP

B/CAST ?

RELCOMP

RELEASEINDICATION

7

RELEASECOMPLETE

STOPT301

IF RUNNING

RELEASEB-CHANNEL

RELEASECR

0

NOTE 1:

RELEASEREQUEST

DISCONNECTREQUEST CONNECT

TIMEOUTT301

WASSETUP

B/CAST ?

WASSETUP

B/CAST ?

WASSETUP

B/CAST ?

RELEASE

STOPT301

IF RUNNING

STARTT308

19

INTRELEASE *REQUEST

(ALL CES's)

RELEASEINDICATION

STOPT301

IF RUNNING

RELEASEB-CHANNEL

DISCONNECT

STOPT301

IF RUNNING

STARTT305

12

CHNLOK ?

CONNECTINDICATION

STOPT301

IF RUNNING

PRESELECTCES

CREATEPROCESS

(CES)

INTRELEASE *REQUEST

(CES)

7

CONNECTINDICATION

STOPT301

IF RUNNING

8

TIMEOUTINDICATION

7

T312RUNNING

?

22 0

CREATEPROCESS

(CES)

INTCONNECT *REQUEST

(CES)

8

IN THE CASE OF A BROADCAST SETUP,THE CALL STATE RETURNED IN THE STATUSMESSAGE SHOULD BE STATE 6.

5.8.4 5.3.3 5.8.4

5.3.4 5.2.7

Y

N

Y

N

Y

N

+

Y

N

N N Y

Y

N

N

YY

CONTD


ETS 300 102-2: December 1990

SETUPACK

CALLPROCEEDING

INT *PROGRESSINDICATION

(CES)

INT *INFO

INDICATION(CES)

WASSETUP

B/CAST ?

CHNLOK ?

CREATEPROCESS

(CES)


(CES)

7

CREATEPROCESS

(CES)

INT *RELEASEREQUEST

(CES)

7

WASSETUP

B/CAST ?

CHNLOK ?

CREATEPROCESS

(CES)


(CES)

7

CREATEPROCESS

(CES)

INT *RELEASEREQUEST

(CES)

7

PROGRESSINDICATION

7

INFOINDICATION

7

STATUS

7

INFOREQUEST

INTRELEASE

INDICATION(CES)

T312

WASSETUP

B/CAST ?OTHER

CESs ABLETO

PROCEED ?

ANY CESABLE TO

PROCEED ?

T312RUNNING

?

SAVECAUSE

7

RELEASEINDICATION

(CAUSE)

STOP TIMERT301

IF RUNNING

RELEASEB-CHANNEL

RELEASECR

0

7

INT *INFO

REQUESTINFO

77

CONTD

TOALL RESPONDINGTERMINALS

STATE 7 CALL RECEIVED CONTD

5.2.4 5.2.5.2

5

Y

Y

N

NN

Y

N

Y

Y

N

N

Y

N

N

Y

Y

+ +


ETS 300 102-2: December 1990

ALERTING INT *CALL PROCINDICATION

(CES)

INT *ALERTING

INDICATION(CES)

INT *CONNECT

INDICATION(CES)

PRESELECTCES

CONNECTINDICATION

STOPT301

IF RUNNING

8

7

WASSETUP

B/CAST ?

CHNLOK ? STATUS

7CREATEPROCESS

(CES)


(CES)

7

CREATEPROCESS

(CES)

INT *RELEASEREQUEST

(CES)

7

INFO

WASSETUP

B/CAST ?

INFOINDICATION

7

STATUS

7

WASSETUP

B/CAST ?

PROGRESSINDICATION

7

NOTE 1. IN THE CASE OF A BROADCAST SETUP, THE CALL STATERETURNED IN THE STATUS MESSAGE SHOULD BE STATE 6.

STATE 7 CALL RECEIVED CONTD

5.2.5.2

5.2.65

PROGRESS

+

Y

Y

N

N

+

N NNOTE 1

Y Y


ETS 300 102-2: December 1990

INDIVIDUAL TERMINAL7I

CALLRECEIVED

DISCONNECT

INT *RELEASE

INDICATION(CES)

RELEASE

STARTT308

19I

RELEASECOMPLETE RELEASE CONNECT

INT *RELEASEREQUEST

INT *RELEASE

INDICATION(CES)

INT *RELEASE

INDICATION(CES)

INT *CONNECT

INDICATION(CES)

RELEASE


(CES)

RELCOMP


(CES)

8I

STARTT308

19I

PROGRESS STATUS OTHERMESSAGE INFO

INT *INFO

REQUEST

INFO

7I

STATUS

7I

INT *INFO

INDICATION(CES)


(CES)

7I

LOGERROR

7I

7I


ETS 300 102-2: December 1990

NOTE 1

8CONNECTREQUEST

RELEASECOMPLETE

WASSETUP

B/CAST ?

RELEASEB-CHANNEL IF

NOT RELEASED

8

RELEASEINDICATION

RELEASECR

0

STATUS

WASSETUP

B/CAST ?

8



11

DISCONNECT INT *REL COMPINDICATION

(CES)

DELETECES

8

RELEASE

WASSETUP

B/CAST ?

RELEASECOMP

8

RELEASEINDICATION

RELEASECOMPLETE

RELEASEB-CHANNEL

RELEASECR

0

CONNECT SETUPACK

CALLPROCEEDING ALERTING

WASSETUP

B/CAST ?

CREATEPROCESS

(CES)

INT *RELEASEREQUEST

(CES)

8

STATUS

8

RELEASEREQUEST

WASSETUP

B/CAST ?

RELEASE

STARTT308

19

INT *RELEASEREQUEST

(ALL CES's)

RELEASEB-CHANNEL

RELEASEINDICATION

DISCONNECTREQUEST

WASSETUP

B/CAST ?

DISCONNECT

STARTT305

12

T312RUNNING

?

22 0


5.8.4 5.3.3 5.8.4

5.3.4

5.2.95.2.95.2.9 5.2.9

Y

N

Y

N

Y

N

N

Y

N

YY

Y

N

N

CONTD


ETS 300 102-2: December 1990

INT *RELEASE

INDICATION(CES)

INT *CALL PROCINDICATION

(CES)

INT *ALERTING

INDICATION(CES)

INT *CONNECT

INDICATION(CES)

SETUPCOMPLETEREQUEST

PRE-SELECTED

CES ?

RELEASEINDICATION

8

INT *RELEASEREQUEST

(ALL CESs))

RELEASEB-CHANNEL

T312RUNNING

?

22 0

CONNECTB-CHANNEL

SELECTCES

CONNECT ACK(SELECTED CES)

END PROCESS*(SELECTED CES)

INT *RELEASEREQUEST

(OTHER CESs)

10

INT *INFO

INDICATION(CES)


(CES)

STATE 8 CONNECT REQUEST CONTD

INFO

WASSETUP

B/CAST ?

INFOINDICATION

8

STATUS

8

PROGRESSINDICATION

INFOINDICATION

8 8

INFOREQUEST

WASSETUP

B/CAST ?

INFO

8

INT *INFO

REQUEST

8

NOTE 1

TO ALLRESPONDINGTERMINALS


5

5.2.8

N

Y

Y

N

5

N

Y

N

Y


ETS 300 102-2: December 1990


CONNECTREQUEST

INT *RELEASEREQUEST

RELEASECOMPLETE RELEASEDISCONNECT END

PROCESS

INT *RELEASE

INDICATION(CES)

INT *RELEASE

INDICATION(CES)

INT *RELEASE

INDICATION(CES)


(CES)


(CES)

RELEASE RELEASECOMPLETE

STARTT308

19I

RELEASE

STARTT308

19I

STATUS OTHERMESSAGES INFO

INT *INFO

REQUEST

STATUS INT *INFO

INDICATION(CES)

INFO

8I

8I

8ILOGERROR

8I


ETS 300 102-2: December 1990

5.2.5.2

9I/C CALL

PROCEEDING

ALERTING

WASSETUP

B/CAST ?

CHNLOK ?

STOPT310

IF RUNNING

ALERTINGINDICATION

CREATEPROCESS

(CES)

CREATEPROCESS

(CES)

INT *ALERTING

(CES)

STARTT301

7

INT *RELEASEREQUEST

(CES)

9

STOPT310

IF RUNNING

ALERTINGINDICATION

STARTT301

7

WASSETUP

B/CAST ?

CHNLOK ?

CREATEPROCESS

(CES)

CREATEPROCESS

(CES)

INT *CALLPROC(CES)

9

INT *RELEASEREQUEST

(CES)

9

STATUS

9

CALLPROC

5.2.5.2 CONTD

NOTE 1. T301 IS NOT USED IF THE NETWORK IMPLEMENTS ANOTHERINTERNAL ALERTING SUPERVISION TIMING FUNCTION.

NOTE 1

NOTE 1

+ +

Y

Y

N

Y

N

N

Y

N


ETS 300 102-2: December 1990

CONNECT

WASSETUP

B/CAST ?

CHNLOK ?

STOPT310

IF RUNNING

CONNECTINDICATION

PRESELECTCES

CREATEPROCESS

(CES)

INT *CONNECT

(CES)

8

CREATEPROCESS

(CES)

INT *RELEASEREQUEST

(CES)

9

STOPT310

IF RUNNING

CONNECTINDICATION

8

INT *ALERT

INDICATION(CES)

INT *CONNECT

INDICATION(CES)


(CES)

STOPT310

IF RUNNING

STOPT310

IF RUNNING

DELETECES

ALERTINGINDICATION

PRESELECTCES 9

STARTT301

CONNECTINDICATION

7 8


(CES)

INTRELEASE

INDICATION(CES)

T312

ANY CESABLE TO

PROCEED ?OTHERCESs

ABLE TOPROCEED ?

T312RUNNING

?

SAVECAUSE

9

STATE 9 I/C CALL PROCEEDING CONTD

RELEASEINDICATION

(CES)

STOP TIMERT310

IF RUNNING

RELEASEB-CHANNEL

RELEASECR

0

9

9

5.2.5.2CONTD

NOTE 1. T301 IS NOT USED IF THE NETWORK IMPLEMENTS ANOTHERINTERNAL ALERTING SUPERVISION TIMING FUNCTION.

+ ++

NOTE 1

Y

Y

N

N

N

Y

N

Y

N

Y


ETS 300 102-2: December 1990

Y Y

TO ALLACTIVECES

TO ALLACTIVECES

TO ALLACTIVECES

RELEASEREQUEST

STOPT310

IF RUNNING

WASSETUP

B/CAST ?

STARTT308

RELEASE

19

INT *RELEASEREQUEST

RELEASEB-CHANNEL

IF NECESSARY

RELEASEINDICATION


T312RUNNING

?

22 0

DISCONNECTREQUEST

TIMEOUTT310

WASSETUP

B/CAST ?

DISCONNECT

DISCONNECTB-CHANNEL

IF NECESSARY

STARTT305

12

INT *RELEASEREQUEST

RELEASEB-CHANNEL

IF NECESSARY

RELEASEINDICATION

T312RUNNING

?

22 0

RELEASEDISCONNECTRELEASECOMPLETE

WASSETUP

B/CAST ?

WASSETUP

B/CAST ?

WASSETUP

B/CAST ?

SAVECAUSE

9

STOPT310

IF RUNNING

RELEASEB-CHANNEL IF

NOT RELEASED

RELEASEINDICATION

RELEASECR

0

STATUS

9

STOPT310

IF RUNNING



11

STOPT310

IF RUNNING

RELEASEINDICATION

RELEASEB-CHANNEL IF

NOT RELEASED

RELEASECOMPLETE

RELEASECR

0

RELEASECOMPLETE

9

INFOREQUEST

WASSETUP

B/CAST ?

INT *INFO

REQUEST

9

INFO

9

5.3.4 5.2.5.3

5.8.45.3.35.8.4

NOTE 1.

NOTE 2.

REF. 5.2.5.4

IN THE CASE OF A BROADCAST SETUP, THE CALL STATERETURNED IN THE STATUS MESSAGE SHOULD BE STATE 6.

STOPT310

IF RUNNING

Y

N

Y

N

N

Y

N

Y

CONTD

5

NOTE 1

N

NOTE 2

N

N

Y

Y

N


ETS 300 102-2: December 1990

NOTE 1 NOTE 1

INFO

WASSETUP

B/CAST ?

STATUS

9

INFOINDICATION

9

STATUS

9

STOPT310

IF RUNNING

PROGRESSINDICATION

9

PROGRESS

WASSETUP

B/CAST ?

SETUPACK

INT *INFO

INDICATION(CES)


(CES)

WASSETUP

B/CAST ?

CHNLOK ?

STOPT310

IF RUNNING

INFOINDICATION

PROGRESSINDICATION

9

9

CREATEPROCESS

(CES)

CREATEPROCESS

(CES)

INT *SETUP

ACK(CES)

INT *RELEASEREQUEST

(CES)

9 9

STATUS

9


5 5.2.6

5.2.4


Y

N

Y

N

Y

Y

N

N


ETS 300 102-2: December 1990

NOTE 1 NOTE 1 NOTE 1

NOTE 1 NOTE 1

9II/C CALL

PROCEEDING

DISCONNECT

STOPT310

IF RUNNING

INT *RELEASE

INDICATION(CES)

RELEASE

STARTT308

19I

TIMEOUTT310

INT *RELEASEREQUEST

RELEASECOMP

RELEASE ALERTING

STOPT310

IF RUNNING

STOPT310

IF RUNNING

STOPT310

IF RUNNING

STOPT310

IF RUNNING

RELEASE

19I

STARTT308

INT *RELEASE

INDICATION(CES)


(CES)

INT *RELEASE

INDICATION(CES)

RELEASECOMPLETE


(CES)

INT *ALERT

INDICATION(CES)

7I

CONNECTINT *INFO

REQUESTINFOOTHER

MESSAGESTATUSPROGRESS

STOPT310

IF RUNNING


(CES)

9I

LOGERROR

STATUS

9I

9I

INT *INFO

INDICATION(CES)

9I

INFO

9I

STOPT310

IF RUNNING

INT *CONNECT

INDICATION(CES)

INDIVIDUAL TERMINAL

NOTE 1. IMPLEMENTATION OF TIMER T310 IN INDIVIDUAL PROCESSES IS OPTIONAL.

NOTE 1 NOTE 1

8I


ETS 300 102-2: December 1990

5.1.8

+

NOTE 1

10ACTIVE

CONNECTACK SUSPEND NOTIFY

REQUEST NOTIFY RELEASECOMPLETE


(CES)

10 SUSPENDINDICATION

15

NOTIFY NOTIFYINDICATION

10 10 RELEASEINDICATION

0

RELEASEB-CHANNEL IF

NOT RELEASED

RELEASECR

DELETECES

10

DISCONNECTREQUEST

RELEASEREQUESTRELEASEDISCONNECTINFO INFO

REQUEST

INFOINDICATION

10

INFODISCONNECTB-CHANNEL IFCONNECTED

RELEASEINDICATION RELEASE


RELEASEB-CHANNEL IF

NOT RELEASED

RELEASEB-CHANNEL IF

NOT RELEASED

STARTT308

STARTT305

DISCONNECT

RELEASECOMPLETE


RELEASECR

10

11

0

19 12

5.6.2

5.6.2

5.6.4

5

5.8.4

THE USE OF THE CALL REARRANGEMENT PROCEDURE IS RESTRICTEDTO BASIC ACCESS i.e. IT WILL NOT BE AVAILABLE FORPRIMARY RATE ACCESS.

5.3.45.3.3

NOTE 1.

5.8.4

+

5.6.2

5.6.4

5

5.9 5.9


ETS 300 102-2: December 1990

5.8.4

+

11DISCONNECT

REQUEST

RELEASECOMPLETE

RELEASEB-CHANNEL IF

NOTRELEASED

RELEASEINDICATION

RELEASECR

0

RELEASE

RELEASEINDICATION

RELEASEB-CHANNEL IF

NOTRELEASED

RELEASECOMPLETE

RELEASECR

0

RELEASEREQUEST INFO INFO

REQUEST

RELEASE

STARTT308

19

INFOINDICATION

11

INFO

11

5.8.4 5.3.3 5 5


5.8.4

+

12DISCONNECTINDICATION

RELEASECOMPLETE RELEASE DISCONNECT TIMEOUT

T305TIMEOUT

T306 INFO INFOREQUEST

STOPT305

OR T306

STOP TONES/ANNOUNCEMENTS

IF APPLICABLE

RELEASEB-CHANNEL IF

NOT RELEASED

STOPT305

OR T306


IF APPLICABLE

RELEASEB-CHANNEL

RELEASECOMPLETE

RELEASECALL REF


IF APPLICABLE

STOPT305

OR T306

STARTT308

RELEASE

RELEASEINDICATION

RELEASEINDICATION

19

0

RELEASECR

0


IF APPLICABLE

INFOINDICATION INFO

12 12

RELEASE

STARTT308

19

5.3.4 5.3.6 5.3.4 5.3.4 5 5

NOTE 1 : CAUSE SENT IS SAME AS INORIGINAL DISCONNECT MESSAGE.

NOTE 1


ETS 300 102-2: December 1990

+

15SUSPENDREQUEST

SUSPENDRESPONSE

SUSPENDACKNOWLEDGE

RELEASECR

0

SUSPENDREJECT

REQUEST

DISCONNECTREQUEST

SUSPENDREJECT

10

TONEOPTION

?


DISCONNECT

STARTT305

DISCONNECT(PI)

STARTTONE

STARTT306

12

RELEASEREQUEST

RELEASE

RELEASEB-CHANNEL IF

NOT RELEASED

STARTT308

19

NOTIFYREQUEST

NOTIFY

15

5.6.2 5.6.3 5.3.4 5.9

5.6.2

5.6.4

NOTE 1 :

NOTE 2 :

TIMER T307 IS RUNNINGIN THE CALL CONTROL BLOCK.

THIS PRIMITIVE IS RECEIVED WHENDOUBLE SUSPENSION OCCURS.

N

Y

NOTE 1 NOTE 2


17RESUMEREQUEST

RESUMERESPONSE

RESUMEACKNOWLEDGE

10

RESUMEREJECT

REQUEST

RESUMEREJECT

RELEASECR

0

DISCONNECT



11

+5.3.3


ETS 300 102-2: December 1990

1 9R E L E A S ER E Q U E S T

R E L E A S EC O M P L E T E

S T O PT 3 0 8

R E L E A S EC O N F I R M

R E L E A S EB-CHNL IF

N E C E S S A R Y

R E L E A S EC A L L R E F

0

R E L E A S ET I M E O U T

T 3 0 8

F IRSTE X P I R Y

?

R E L E A S E

S T A R TT 3 0 8

1 9

P L A C EB - C H A N N E L I N AM A I N T E N A N C E

C O N D I T I O N

R E L E A S EC O N F I R M


0

D I S C O N N E C T

1 9

INT *R E L C O M PINDICATION

(CES)

D E L E T EC E S

1 9

S T A T U S

C S =0 ?

S T A T U SINDICATION

( E R R O R )

S T O PT 3 0 8

R E L E A S EB - C H A N N E L


0

1 9

INT *I N F O

INDICATION(CES)

I N F O

I N F OINDICATION

1 9

I N F OINDICATION

1 9

5.3 .4 5.3 .5 5.3 .4 .35 .8 .11

+

5

Y

N

Y

N


ETS 300 102-2: December 1990


RELEASEREQUEST

RELEASECOMPLETE

STOPT308


(CES)

RELEASE

STOPT308


(CES)

DISCONNECT

19I

TIMEOUTT308

FIRSTEXPIRY

?

RELEASE

STARTT308

19I

STATUS OTHERMESSAGE

STATUS

19ILOGERROR

19I

INFO

19I


(CES)

NOTE 1. THE INDIVIDUAL PROCESS MAY PASS AN INT. INFOINDICATION TO THE GLOBAL PROCESS AT THIS POINT.(REF. SECTION 5.0)

N

NOTE 1

Y


ETS 300 102-2: December 1990

22CALL

ABORT

ALERTING

CREATEPROCESS

(CES)

INT *RELEASEREQUEST

(CES)

22

CONNECT CALLPROCEEDING

SETUPACKNOWLEDGE RELEASE RELEASE

COMPLETE

RELEASECOMPLETE

22

22

TIMEOUTT312

CLEART312FLAG

0


(CES)

DELETECES

22

+

5.3.2(e)

5.3.2(e) 5.3.2(e) 5.3.2(e) 5.3.2(e)

NOTE 1. THE CALL REFERENCE SHOULD NOT BE RE-USEDUNTIL ALL TERMINALS HAVE COMPLETED CLEARING.

NOTE 1


ETS 300 102-2: December 1990

TO ALLACTIVECES's

NOTE 1

25OVERLAP

RECEIVING

SETUPACK

WASSETUP

B/CAST ?

CHNLOK ?

MAXEXCEEDED

?

CREATEPROCESS

(CES)

CREATEPROCESS

(CES)

INT *SETUP

ACKNOWLEDGE(CES)

INT *RELEASEREQUEST

(CES)

INFOMESSAGES

FROMQUEUE

25

25

STATUS

25ADD INFOMESSAGETO QUEUE

WASSETUP

B/CAST ?

STOPT304

MOREINFO

REQUEST

INT *INFO

REQUEST

STARTT304

25

INFO STARTT301

ALERTINGINDICATION

STOPT304

INT *ALERT

INDICATION(CES)

7

25

DELETECES

PRESELECTCES


(CES)


(CES)

INT *CONNECT

INDICATION(CES)

T312

INTRELEASE

INDICATION(CES)

STOPT304

STOPT304

OTHERCESs ABLE

TOPROCEED ?

ANYCES ABLE

TOPROCEED ?


STARTT310

9

CONNECTINDICATION

8

T312RUNNING

?

25

RELEASEINDICATION

(CAUSE)

STOP TIMERT304

IF RUNNING

RELEASEB-CHANNEL

RELEASECR

0

SAVECAUSE

25

INT *INFO

INDICATION(CES)


(CES)

PROGRESSINDICATION

25

INFOINDICATION

25

+

5.2.4 5.2.4

+ +

+ +

NOTE 1. T301 IS NOT USED IF THENETWORK IMPLEMENTS ANOTHERINTERNAL ALERTING SUPERVISIONTIMING FUNCTION.

N

N

Y

Y

N

CONTD

N

N

Y

N

Y

Y

N

Y

Y


ETS 300 102-2: December 1990

Y Y

CONTD.

ALERTING

WASSETUP

B/CAST ?

STOPT304

CHNLOK ?

STOPT304

ALERTINGINDICATION

CREATEPROCESS

(CES)

CREATEPROCESS

(CES)

ALERTINGINDICATION

STARTT301

7

INT *ALERTING

(CES)

STARTT301

7

INT *RELEASEREQUEST

(CES)

25

CONNECT

WASSETUP

B/CAST ?

CHNLOK ?

STOPT304

CONNECTINDICATION

PRESELECTCES

OVERLAP RECEIVING CONTD 5.2.5.2

NOTE 1.

CREATEPROCESS

(CES)

INT *CONNECT

(CES)

8

8

INT *RELEASEREQUEST

(CES)

25

CONNECTINDICATION

STOPT304

PROGRESS INFO

WASSETUP

B/CAST ?

WASSETUP

B/CAST ?

STATUS PROGRESSINDICATION

25 25 25 25

STATUS INFOINDICATION

5.2.7

+ +

5.2.6 5

CREATEPROCESS

(CES)

NOTE 2.


T301 IS NOT USED IF THE NETWORK IMPLEMENTS ANOTHERINTERNAL ALERTING SUPERVISION TIMING FUNCTION.

NOTE 2

NOTE 1

N

NOTE 1

N

Y

Y

Y

Y

N N

N

NOTE 2

N


ETS 300 102-2: December 1990

+

Y

OVERLAP RECEIVING CONTD 5.2.5.2 5.3.3

5.8.4

CALLPROC

WASSETUP

B/CAST ?

CHNLOK ?

STOPT304


CREATEPROCESS

(CES)

CREATEPROCESS

(CES)

INT *RELEASEREQUEST

(CES)

STARTT310

9

INT *CALLPROC(CES)

25

5.8.4

STOPT304


STARTT310

9

STATUS

25

STOPT304



11

WASSETUP

B/CAST ?

DISCONNECT

RELEASECOMPLETERELEASE

WASSETUP

B/CAST ?

WASSETUP

B/CAST ?

RELEASECOMPLETE

STOPT304

SAVECAUSE

STOPT304

RELEASEB-CHANNEL IF

NOT RELEASED

RELEASEB-CHANNEL IF

NOT RELEASED

RELEASECR

RELEASECR

RELEASEINDICATION

RELEASECOMPLETE

RELEASEINDICATION

25

0

25

0

CONTD.

Y

NOTE 1.

NOTE 2.


REF. 5.2.5.4

N

Y

Y

NOTE 1

NN

Y

N

NOTE 2

N


ETS 300 102-2: December 1990

NOTE 1

DISCONNECTREQUEST

STOPT304

WASSETUP

B/CAST ?

TIMEOUTT304

INT *RELEASEREQUEST

RELEASEB-CHANNEL

IF NECESSARY

RELEASEINDICATION

T312RUNNING

?

22 0

STARTT305

12

DISCONNECTB-CHANNEL

IF NECESSARY

DISCONNECT

RELEASEREQUEST

STOPT304

WASSETUP

B/CAST ?

INT *RELEASEREQUEST

RELEASEB-CHANNEL

IF NECESSARY

RELEASEINDICATION

T312RUNNING

?

22 0

19

STARTT308

RELEASE

TO ALLCES's

TO ALLCES's

NOTE 1. IF T304 EXPIREDSEND SAVED CAUSEIN RELEASE INDICATION.

OVERLAP RECEIVING CONTD 5.3.4 5.2.4

Y

N

Y

N

Y

N

Y

N


ETS 300 102-2: December 1990

25IOVERLAP

RECEIVING

INT *INFO

REQUESTALERTING PROGRESSOTHER

MESSAGECONNECT CALLPROC

STOPT304

STOPT304

STOPT304

STOPT304

STOPTIMERT304

STATUS

INFO

STARTT304

STARTT310

INT *ALERT

INDICATION(CES)

INT *CONNECT

INDICATION(CES)


(CES)


(CES)

25I

7I 8I

9I

25I

25I

IMPLEMENTATION OF TIMER T310 ININDIVIDUAL PROCESSES IS OPTIONAL.

NOTE 1.

INT *RELEASEREQUEST

TIMEOUTT304 DISC RELEASE

COMP RELEASE STATUS

STOPT304

INT *RELEASE

INDICATION(CES)

STOPT304

INT *RELEASE

INDICATION(CES)

RELEASECOMP


(CES)

STOPT304

STOPT304

INT *RELEASE

INDICATION(CES)

INT *RELEASE

INDICATION(CES)


(CES)RELEASE

STARTT308

19I

LOGERROR

25I

INDIVIDUAL TERMINAL

NOTE 1


ETS 300 102-2: December 1990

NOTE 1

5.8.10, 5.8.11

5.8.85.8.85.8.8

NOTE 2

NOTE 1.

NOTE 2.

NOTE 3.

ANYGLOBALSTATE

DL-ESTABLISHINDICATION

STATEN2,N25

?

STOP ANYTIMER

SAMESTATE

TONEOPTION

?




STARTTONE

STARTT306

STARTT305

DISCONNECT(PI)

DISCONNECT

12

7I, 8I,9I, 25I


SAMESTATE

STATES10,11,12,

15.19

STATES8,10,11,12,

15,1925I

MESSAGE(WRONG)

(CES)

CREATEPROCESS

(CES)

INT *RELEASEREQUEST

(CES)

SAMESTATE

SAMESTATE

TIMEOUTT312

STOP T304IF

IMPLEMENTED


INT *RELEASE

INDICATION(CES)

RELEASE

STARTT308

19I

ANY STATEEXCEPT

0, 19

STATUS(CS=M)

T322RUNNING

?

CAUSE=#97

?

CAUSE=#30

?

STOPT322

SAVE CAUSEAND

CALL STATE

SAMESTATE

M=0?

RELEASECR AND

RESOURCES

STATUSINDICATION

(ERROR)

0

COMPATIBLESTATE

?

SAMESTATE

STATUSINDICATION

(ERROR)

RELEASE

STARTT308

19

FURTHER ACTIONS ARE AN IMPLEMENTATION OPTION.

TONE OPTION NOT APPLICABLE TO STATE N25.

CAUSE #41 IS SENT IN THE DISCONNECT MESSAGE.

NOTE 3

Y

N

Y

N

Y

N

Y

Y

N

Y

N


ETS 300 102-2: December 1990

5.8.9

5.8.95.8.95.8.9

5.8.9

ANY STATEEXCEPT 0,

10

DL-RELEASEINDICATION

STOPANY TIMER

RELEASEB-CHANNEL

RELEASEINDICATION

RELEASECR

0

0


0

10ACTIVE


T309RUNNING

?

STARTT309

DL-ESTABLISHREQUEST

10ACTIVE

10ACTIVE

7I, 8I, 9I,19I, 25I


STOPANY TIMER

INTERNAL *RELEASE

INDICATION(CES)

INTERNAL *REL COMPINDICATION

(CES)

DL-ESTABLISHCONFIRMATION

TIMEOUTT309

STOPT309

RELEASEB-CHANNEL

RELEASEINDICATION

RELEASECR

0

STATUS

10ACTIVE

STARTT322

STATUSENQUIRY

T322RUNNING ?

NOTE 1: T322 MUST BE STOPPED ON RECEIPT OF ACLEARING MESSAGE

N

Y

N

Y

NOTE 1


ETS 300 102-2: December 1990

ANY GLOBAL ORINDIVIDUAL

STATE EXCEPTO, OI

T322RUNNING

?

UNEXPECTEDMESSAGE

UNRECOGNISEDMESSAGE SETUP

SAMESTATE

STATUS

STATUSENQUIRY

STARTT322

SAMESTATE

NOTE 4

5.8.4 5.8.4 5.8.3.2(e)

TIMEOUTT322 STATUS

ENQUIRY

STATUSENQUIRYREQUEST

T322RUNNING

?

STATUSMESSAGERECEIVED

?

STATUS

SAMESTATE

NOTE 2

MAX No.RETRANSMISSIONS

EXCEEDED?

RELEASE(CAUSE #41)

STATUSENQUIRY

STARTT322

SAMESTATE

NOTE 4

5.8.10 5.8.10 5.8.10

RELEASEINDICATION

(ERROR)

STARTT308

19

STATUSENQUIRY

STARTT322

SAMESTATE

NOTE 4

NOTE 1 :-

NOTE 2 :-

NOTE 3 :-

NOTE 4 :-

"UNEXPECTED MESSAGE" AND"UNRECOGNISED MESSAGE" DO NOTINCLUDE RELEASE AND RELEASE COMPLETE

ACTIONS AFTER EXPIRY OF T322WHEN A STATUS MESSAGE HAS BEENRECEIVED ARE IMPLEMENTATION DEPENDENT

CAUSE #30 SHALL BE SENTIN THE STATUS MESSAGE

T322 MUST BE STOPPED IF ANY CLEARINGMESSAGE IS RECEIVED BEFORE IT EXPIRES

NOTE 1NOTE 1

Y

N

NOTE 3

Y

N

Y

N

N


ETS 300 102-2: December 1990

7.2 User side SDL diagrams

++ +

ONULL

RESUMEREQUEST

SELECTCR

RESUME

STARTT318

17

SETUPREQUEST

SELECTCR

SETCHANNELIDENTITY

SETUP

STARTT303

1

RELEASE

ESTABLISHCR

RELEASECR

RELEASECOMPLETE

0

RELEASECOMPLETE

0

SETUP

ESTABLISHCR

SETUPINDICATION

6

STATUS(CS=0)

0

UNEXPECTEDMESSAGE

STATUS(CS<>0)

5.8.115.2.15.8.35.8.35.1.15.6.4

UNRECOGNISEDMESSAGE

NOTE 3

NOTE 2

NOTE 4

NOTE 1

ESTABLISHCR

RELEASECOMPLETE

RELEASECR

0

ESTABLISHCR

RELEASE

STARTT308

19

NOTE 1 :

NOTE 2 :

NOTE 3 :

NOTE 4 :

T318 IS OPTIONAL

IF THE USER IS UNABLE TO PROCEED WITH THE CALLDUE TO THE CHANNEL IDENTITY BEING UNACCEPTABLE,A RELEASE COMPLETE MESSAGE MAY BE RETURNED AT THIS POINT(REF. SECTION 5.2.3)

THE USE OF THE CALL REARRANGEMENT PROCEDURE ISRESTRICTED TO BASIC ACCESS, i.e. IT WILL NOT BEAVAILABLE FOR PRIMARY RATE ACCESS

T303 IS ONLY APPLICABLE FOR THE PROCEDURESDEFINED IN ANNEX D

5.8.3 5.8.35.8.11

Figure 41: User side SDL diagram

ETS 300 102-2: December 1990

Y

+

5.1.15.1.25.3.2

1CALL

INITIATED

TIMEOUTT303

FIRSTTIMEOUT

?

SETUP

STARTT303

1

RELEASECR

0

DISCONNECTREQUEST

STOPT303

DISCONNECT

STOPT305

11

INFOREQUEST

CALLPROCEEDING

STOPT303


B-CHANNELCONTROL(REF 5.1.2)

STARTT310

3

NOTE 1

NOTE 2

NOTE 3

NOTE 4

NOTE 3

NOTE 3

5.1.5.15.1.35.3.3

RELEASERELEASECOMPLETE

SETUPACKCONNECTALERTING

STOPT303

ALERTINGINDICATION

B-CHANNELCONTROL(REF 5.1.2

5.1.6, 5.1.7)

STARTT301

4

STOPT303

SETUPCONFIRM

B-CHANNELCONTROL

(IF NOT YETEXPECTED)

CONNECTACKNOWLEDGE

10

STOPT303

MOREINFO

INDICATION

B-CHANNELCONTROL(REF 5.1.2)

STARTT304

2

0

STOPT303

RELEASECR

REJECTINDICATION

STOPT303

RELEASEINDICATION

RELEASECOMPLETE

RELEASECR

3

NOTE 3NOTE 3

NOTE 2

NOTE 1

NOTE 3

NOTE 2

NOTE 3

NOTE 1

NOTE 3

5.8.4

5.1.3

NOTE 1:

NOTE 2:

NOTE 3:

NOTE 4:

T304 & T310 ARE OPTIONAL

THE USER MAY CLEAR THE CALL AT THIS POINT IF THE CHANNEL IDENTITYRETURNED BY THE NETWORK IS UNACCEPTABLE.

ONLY APPLICABLE FOR THE PROCEDURES DEFINED IN ANNEX D.

THE SETUP ACKNOWLEDGE MESSAGE WILL NOT BE RECEIVED IF THE SENDINGCOMPLETE INFORMATION ELEMENT IS INCLUDED IN THE ORIGINATING SETUPMESSAGE.

N


ETS 300 102-2: December 1990

NOTE 1

NOTE 1

NOTE 1

NOTE 1


NOTE 2

NOTE 3

NOTE 1NOTE 1NOTE 1

NOTE 1

5.1.2 5.8.4 5.1.6 5.8.4 5

NOTE 1 :

NOTE 2 :

NOTE 3 :

2OVERLAPSENDING

TIMEOUTT304

SETUPCONFIRM(ERROR)

DISCONNECTB-CHANNEL

IF NECESSARY

DISCONNECT

STARTT305

11

DISCONNECTB-CHANNEL

IF NECESSARY

DISCONNECT

STARTT305

11

STOPT304

(IF RUNNING)

DISCONNECTREQUEST

INFOREQUEST ALERTING CALL

PROCEEDING CONNECT

INFO

RESTARTT304

IF RUNNING

2

STOPT304

(IF RUNNING)

ALERTINGINDICATION

B-CHANNELCONTROL(REF 5.1.2,

5.1.6)

4

STOPT304

(IF RUNNING)


B-CHANNELCONTROL(REF 5.1.2,

5.1.6)

3

STARTT310

STOPT304

(IF RUNNING)

SETUPCONFIRM

CONNECTB-CHANNEL(IF NOT YET

CONNECTED)

10

CONNECTACK

5.1.5.2 5.3.3 5.1.3 5.1.5.2 5.1.5.2 5.1.5.2

+ + + +

DISCONNECTINFORELEASECOMPLETE

PROGRESS(INTER-WORKING)

RELEASEPROGRESS(TONE)

STOPT304

(IF RUNNING)


B-CHANNELCONTROL

12

INFOINDICATION

2

STOPT304

(IF RUNNING)

RELEASEB-CHANNEL

RELEASEINDICATION

RELEASECR

0

STOPT304

(IF RUNNING)

PROGRESSINDICATION

B-CHANNELCONTROL

(REF. 5.1.2,5.1.6)

2

STOPT304

(IF RUNNING)

PROGRESSINDICATION

B-CHANNELCONTROL

(REF. 5.1.2)

2

RELEASEINDICATION

RELEASEB-CHANNEL

RELEASECOMPLETE

RELEASECR

0

5.3.4

TIMERS T304 & T310 ARE OPTIONALT304 MAY BE IMPLEMENTED BUT STOPPED DUE TORECEIPT OF PROGRESS (INTERWORKING)

IN THE CASE OF UNSUCCESSFUL TERMINATION OF THE B-CHANNELSELECTION PROCEDURE (REF. 5.3.2d) A RELEASE MESSAGE ISRETURNED BEFORE ENTERING STATE 2.

TIMER T301 IS STARTED AT THIS POINT IF THE PROCEDURESDEFINED IN ANNEX D ARE IMPLEMENTED


ETS 300 102-2: December 1990

NOTE 1NOTE 1 NOTE 1

NOTE 1NOTE 1NOTE 1

NOTE 1 :

NOTE 2 :

NOTE 3 :

3O/G CALL

PROCEEDING

DISCONNECTREQUEST

STOPT310

(IF RUNNING)

DISCONNECTB-CHANNEL

IF NECESSARY

DISCONNECT

STARTT305

11

ALERTING

STOPT310

(IF RUNNING)

ALERTINGINDICATION

B-CHANNELCONTROL

(REF. 5.1.2,5.1.6)

4

CONNECT DISCONNECT INFO PROGRESS(TONE)

STOPT310

(IF RUNNING)

STOPT310

(IF RUNNING)

INFOINDICATION

PROGRESSINDICATION

3

3

B-CHANNELCONTROL

(REF. 5.1.2)


B-CHANNELCONTROL

12

SETUPCONFIRM


CONNECTED)

CONNECTACK

10


PROGRESS(INTER-WORKING)

TIMEOUTT310

INFOREQUEST

STOPT310

(IF RUNNING)INFO

DISCONNECTB-CHANNEL

IF NECESSARY

STOPT310

(IF RUNNING)

STOPT310

(IF RUNNING)

PROGRESSINDICATION 3 DISCONNECT RELEASE

B-CHANNELRELEASE

INDICATION

RELEASEB-CHANNEL

RELEASECOMPLETE

RELEASECR

0

0

RELEASECR

RELEASEINDICATION

SETUPCONFIRM(ERROR)

STARTT305

11

B-CHANNELCONTROL

(REF. 5.1.2,5.1.6)

3

NOTE 1

NOTE 1

NOTE 2

NOTE 3

5.3.3 5.1.7 5.1.8 5.3.4 5 5.1.2

+ +

5.1.6 5 5.8.45.8.4

T310 IS OPTIONALIT MAY BE IMPLEMENTED BUT STOPPED DUE TORECEIPT OF PROGRESS (INTERWORKING)


TIMER T301 IS STARTED AT THIS POINT IF THE PROCEDURESDEFINED IN ANNEX D ARE IMPLEMENTED


ETS 300 102-2: December 1990

+

4CALL

DELIVERED

DISCONNECTREQUEST

DISCONNECTB-CHANNEL

IF NECESSARY

DISCONNECT

STARTT305

11

CONNECT

SETUPCONFIRM


CONNECTED)

CONNECTACK

10

DISCONNECT


B-CHANNELCONTROL

12

INFO

INFOINDICATION

4

PROGRESS

PROGRESSINDICATION

B-CHANNELCONTROL

(REF. 5.1.2,5.1.6)

4

RELEASE

RELEASEINDICATION

RELEASEB-CHANNEL

RELEASECOMPLETE

RELEASECR

0

5.3.3 5.3.45.1.8 5 5.1.6 5.8.4

RELEASECOMPLETE

INFOREQUEST

INFO

4

RELEASEB-CHANNEL

RELEASEINDICATION

RELEASECR

0

5 5.8.4

NOTE 1 :

NOTE 2 :


T301 (NOT SHOWN) IS RUNNING IN THIS STATE IF THE PROCEDURESDEFINED IN ANNEX D ARE IMPLEMENTED


ETS 300 102-2: December 1990

5CALL

PRESENT

ALERTINGREQUEST

B-CHANNELSELECTION

ALERTING

7

PROCEEDINGREQUEST

B-CHANNELSELECTION

CALLPROCEEDING

9

SETUPRESPONSE

B-CHANNELSELECTION

CONNECT

STARTT313

8 25

STARTT302

SETUPACK

B-CHANNELSELECTION

MOREINFO

REQUESTDISCONNECT


12

RELEASE

RELEASEINDICATION

RELEASECOMPLETE

RELEASECR

0

5.2.5.15.2.75.2.5.1 5.2.45.2.5 5.3.4 5.3.2

+ + + +

RELEASECOMPLETE

RELEASEB-CHANNEL

RELEASEINDICATION

RELEASECR

0

REJECTREQUEST(CAUSE)

CAUSE=INCOMPATIBLE

USER ?

WASSETUPB/CAST

?

5.8.4

5.2.5.15.2.25.2.3

RELEASECOMPLETE

(CAUSE)

RELEASECR

0

NOTE 1 :

NOTE 2 :

TIMER T302 IS OPTIONAL

IN THE CASE OF A POINT-TO-POINT CONNECTIONCONNECTION TO THE B-CHANNEL MAY BE MADE ATTHIS POINT REF. 5.2.3.1d.

NOTE 2 NOTE 2 NOTE 2 NOTE 2

NOTE 1

Y

Y

N

N


ETS 300 102-2: December 1990

+

7CALL

RECEIVED

DISCONNECTREQUEST

DISCONNECTB-CHANNEL

IF NECESSARY

DISCONNECT

STARTT305

11

8

STARTT313

CONNECT

SETUPRESPONSE

PROGRESSREQUEST

PROGRESS

7


12 7

INFOINDICATION

DISCONNECT INFO RELEASE

RELEASEINDICATION

RELEASEB-CHANNEL

(IF NECESSARY)

RELEASECOMPLETE

RELEASECR

0

5.2.65.3.3 5.3.4 5 5.8.45.2.75.2.5.1

NOTE 1 NOTE 1

INFOREQUEST

RELEASECOMPLETE

RELEASEB-CHANNEL

RELEASEINDICATION

RELEASECR

0

INFO

7

5 5.8.4

NOTE 1: IN THE POINT TO POINT CASECONNECTION TO THE B-CHANNELMAY BE MADE AT THIS POINT.(REF. 5.2.3.1d).


ETS 300 102-2: December 1990

NOTE 1

NOTE 2

8CONNECTREQUEST

TIMEOUTT313

DISCONNECT

STARTT305

SETUPCOMPLETEINDICATION

(ERROR)

11

DISCONNECTREQUEST

STOPT313

DISCONNECTB-CHANNEL

IF NECESSARY

DISCONNECT

STARTT305

11

CONNECTACK

STOPT313

SETUPCOMPLETEINDICATION


CONNECTED )

10

DISCONNECT INFO RELEASE

STOPT313

INFOINDICATION

STOPT313

DISCONNECTINDICATION 8

12

RELEASEINDICATION

RELEASEB-CHANNEL

(IF CONNECTED)

RELEASECOMPLETE

RELEASECR

0

5.3.45.2.8 5.3.3 5 5.8.4+

RELEASECOMPLETE

INFOREQUEST

5 5.8.4

INFO

8

STOPT313

RELEASEB-CHANNEL

RELEASEINDICATION

RELEASECR

0

NOTE 1 : REF. SECTION 5.2.8

5.2.8


ETS 300 102-2: December 1990

9I/C CALL

PROCEEDING

ALERTINGREQUEST

ALERTING

7

DISCONNECTREQUEST

SETUPRESPONSE

PROGRESSREQUEST

DISCONNECT INFO

DISCONNECTB-CHANNEL

IF NECESSARY

DISCONNECT

STARTT305

11

8

STARTT313

CONNECT PROGRESS

9 12 9


INFOINDICATION

5.2.5.1

+

5.3.3

+

5.2.6 5.3.4 55.2.75.2.5.1


INFOREQUEST

INFO

9

RELEASEB-CHANNEL

RELEASEINDICATION

RELEASECR

0

RELEASEINDICATION

RELEASEB-CHANNEL

(IF CONNECTED)

RELEASECOMPLETE

RELEASECR

0


5 5.8.4 5.8.4

NOTE 1 : IN THE POINT TO POINT CASE,CONNECTION TO THE B-CHANNELMAY BE MADE AT THIS POINT.(REF. 5.2.3.1d)


ETS 300 102-2: December 1990

10ACTIVE

DISCONNECTREQUEST

DISCONNECTB-CHANNEL

IF NECESSARY

DISCONNECT

STARTT305

11

INFOREQUEST

INFO

10 10

NOTIFY

NOTIFYREQUEST

SUSPENDREQUEST DISCONNECT INFO

INFOINDICATION

1012

DISCONNECTINDICATIONSUSPEND

STARTT319

15

NOTE 1

NOTE 1

55.3.3

+

5.6.1 5.3.4 5

+

5.6.75.9

NOTIFYRELEASERELEASECOMPLETE

5.8.4 5.8.45.95.6.45.6.2

RELEASEB-CHANNEL

RELEASEINDICATION

RELEASECR

0 RELEASECR

RELEASECOMPLETE

RELEASEB-CHANNEL

RELEASEINDICATION

NOTIFYINDICATION

10

0

NOTE 1 : THE USE OF THE CALL REARRANGEMENT PROCEDURE IS RESTRICTEDTO BASIC ACCESS i.e. IT WILL NOT BE AVAILABLE FORPRIMARY RATE ACCESS.


ETS 300 102-2: December 1990

+

11DISCONNECT

REQUEST

TIMEOUTT305

RELEASE

STARTT308

19

DISCONNECT INFO NOTIFY

STOPT305

INFOINDICATION

NOTIFYINDICATION

1111

19

STARTT308

RELEASE

NOTE 1

5.3.3 5.3.5 5

5.95.6.45.6.2

INFOREQUEST

RELEASECOMPLETE RELEASE

5 5.8.4 5.3.3

INFO

11

STOPT305

RELEASEB-CHANNEL

RELEASEINDICATION

RELEASECR

0 RELEASECR

0

RELEASECOMPLETE

RELEASEB-CHANNEL

RELEASEINDICATION

STOPT305

NOTE 1 : THE SAME CAUSE IS SENT AS IN THE ORIGINALDISCONNECT MESSAGE (REF. SECTION 5.3.3).


ETS 300 102-2: December 1990

+

12DISCONNECTINDICATION

RELEASEREQUEST

DISCONNECTB-CHANNEL

RELEASE

STARTT308

19

INFOREQUEST

INFO

12 12

INFOINDICATION

INFO RELEASE RELEASECOMPLETE

RELEASEINDICATION

RELEASEB-CHANNEL

RELEASEB-CHANNEL

RELEASEINDICATION

RELEASECOMPLETE

RELEASECR

0

0

RELEASECR

5.3.4 5 5 5.8.4 5.8.4


ETS 300 102-2: December 1990

15SUSPENDREQUEST

TIMEOUTT319

SUSPENDCONFIRM(TIMEOUTERROR)

10

DISCONNECT

STOPT319


12

15 15

INFOINDICATION

NOTIFYINDICATION

INFO NOTIFY RELEASE

STOPT319

RELEASEINDICATION

RELEASEB-CHANNEL

RELEASECOMPLETE

RELEASECR

0

5.6.3 5.3.4 5.3.5 5.8.4

5.95.6.45.6.2

SUSPENDREJECT

RELEASECOMPLETE

SUSPENDACKNOWLEDGE

5.6.2

+

5.6.3 5.8.4

STOPT319

STOPT319

STOPT319

SUSPENDCONFIRM

SUSPENDCONFIRM(ERROR)

RELEASEB-CHANNEL

RELEASEINDICATION

RELEASECR

0

10RELEASEB-CHANNEL

RELEASECR

0


ETS 300 102-2: December 1990

+

17RESUMEREQUEST

TIMEOUTT318

RELEASE

STARTT308

19 STARTT308

19

RELEASE

STOPT318

DISCONNECT RELEASE RELEASECOMPLETE

RESUMEACK

RESUMEREJECT

STOPT318

STOPT318

STOPT318

STOPT318

RELEASEINDICATION

RELEASEB-CHANNEL

RESUMECONFIRM

RESUMECONFIRM(TIMEOUTERROR)

RELEASECR

0

RELEASECR

RELEASECR

0 0

10

CONNECTTO

B-CHANNEL

RELEASECOMPLETE

RELEASEINDICATION

NOTE 1

5.6.5 5.3.4 5.6.55.6.45.8.45.8.4

NOTE 1: CAUSE #102 "RECOVERY ON TIMER EXPIRY"SENT IN THE RELEASE MESSAGE(REF. 5.3.2f)


ETS 300 102-2: December 1990

NOTE 2

NOTE 1

+

19RELEASEREQUEST

TIMEOUTT308

FIRSTTIMEOUT

RELEASE RELEASECOMPLETE DISCONNECT STATUS

(CS) INFO

CAUSEVALUE #30

?

STOP T322IF RUNNING

19

0

STOPT308

STOPT308

RELEASECONFIRM

RELEASEB-CHANNEL

IF NECESSARY

RELEASECR

0

RELEASECR

RELEASEB-CHANNEL

IF NECESSARY

RELEASECONFIRM

19

CS=0?

STOPT308

STATUSINDICATION

(ERROR)

RELEASEB-CHANNEL

IF NECESSARY

RELEASECR

0

INFOINDICATION

19

PLACEB-CHANNEL INMAINTENANCE

CONDITION

RELEASECONFIRM(ERROR)

RELEASE

RESTARTT308

19

RELEASEB-CHANNEL

IF NECESSARY

RELEASECR

0

5.3.4.3 5.3.5 5.3.4 5.8.11 5

NOTE 1:

NOTE 2:

THIS MESSAGE MAY BE RECEIVEDIN THE CASE OF CLEAR COLLISION.

THE OPTION OF PLACING THE B-CHANNEL IN THE MAINTENANCE CONDITIONIS NOT APPLICABLE IN THE CASE OF POINT-TO-MULTIPOINT CONFIGURATIONS(REF SECTION 5.3.4.3)

Y

N

Y

N

N

Y


ETS 300 102-2: December 1990

25OVERLAP

RECEIVING

TIMEOUTT302

DISCONNECTREQUEST

ALERTINGREQUEST

PROCEEDINGREQUEST

SETUPRESPONSE

PROGRESSREQUEST

STOPT302

IF RUNNING

STOPT302

IF RUNNING

STOPT302

IF RUNNING

STOPT302

IF RUNNING

STOPT302

IF RUNNING

DISCONNECTB-CHANNEL

IF NECESSARYALERTING CALL

PROCEEDING CONNECT PROGRESS

DISCONNECT 7 9 STARTT313

8

25

STARTT305

11

ISCALL INFODEFINITELY

INCOMPLETE?

DISCONNECTB-CHANNEL

IF NECESSARY

DISCONNECT

STARTT306

11

WHICHMESSAGE

?

ALERTING CALLPROCEEDING

97

8

STARTT313

CONNECT

NOTE 1 NOTE 1 NOTE 1 NOTE 1

NOTE 2NOTE 2NOTE 2NOTE 2


CONN ALERT CALL PROC

NOTE 1

5.2.4 5.2.4 5.2.4 5.2.4 5.2.65.2.75.2.4

+ + +

DISCONNECTINFORELEASERELEASECOMPLETE

INFO

INFOREQUEST

25

STOPT302

IF RUNNING

STOPT302

IF RUNNING

STOPT302

IF RUNNING

RELEASEB-CHANNEL

INFOINDICATION


1225

RESTARTT302

RELEASEINDICATION

RELEASEB-CHANNEL

RELEASECOMPLETE

RELEASECR

0

RELEASEINDICATION

RELEASECR

0

5.2.45.8.45.8.45


NOTE 1

NOTE 1 :

NOTE 2 :

T302 IS OPTIONAL

IN THE POINT TO POINT CASE,CONNECTION TO THE B-CHANNELMAY BE MADE AT THIS POINT.(REF. 5.2.3.1d)

5.3.4

Y

N


ETS 300 102-2: December 1990

2 25



STOPT304

STOPT302

ERRORINDICATION

DISCONNECTB-CHANNEL

IF NECESSARY

DISCONNECT

STARTT305

11

ANY STATEEXCEPT

2, 25


SAMESTATE

ANY STATEEXCEPT

0

UNEXPECTEDMESSAGE

UNRECOGNISEDMESSAGE SETUP

SAMESTATE

T322RUNNING

? STATUS

STATUSENQUIRY

STARTT322

SAMESTATE

5.8.3.2(e)5.8.45.8.45.8.85.8.85.8.8

TIMEOUTT322

STATUSENQUIRY

STATUSENQUIRYREQUEST

5.8.10 5.8.10 5.8.10

STATUS

SAMESTATE

T322RUNNING

?

STATUSENQUIRY

STARTT322

SAMESTATE

STATUSMESSAGERECEIVED

?

NOTE 6

NOTE 6

NOTE 4

MAX No.RETRANSMISSIONS

EXCEEDED?

RELEASE(CAUSE #41) STATUS

ENQUIRY

STARTT322

SAMESTATE

NOTE 6

RELEASEINDICATION

(ERROR)

STARTT308

19

NOTE 1 :-

NOTE 2 :-

NOTE 3 :-

NOTE 4 :-

NOTE 5 :-

NOTE 6 :-

T304 IS OPTIONAL

CAUSE #41 IS SENT IN THEDISCONNECT MESSAGE

"UNEXPECTED MESSAGE" AND"UNRECOGNISED MESSAGE" DO NOTINCLUDE RELEASE AND RELEASE COMPLETE

ACTIONS AFTER EXPIRY OF T322WHEN A STATUS MESSAGE HAS BEENRECEIVED ARE IMPLEMENTATION DEPENDENT

CAUSE #30 SHALL BE SENTIN THE STATUS MESSAGE

T322 MUST BE STOPPED IF ANY CLEARINGMESSAGE IS RECEIVED BEFORE IT EXPIRES

NOTE 2

NOTE 3 NOTE 3

NOTE 1

Y

N

NOTE 5

Y

N

NN

YY


ETS 300 102-2: December 1990

NOTE 2

2OVERLAPSENDING


SETUPCONFIRM(ERROR)

STOPT304

RELEASEB-CHANNEL

IF NECESSARY

RELEASECR

0

0NULL


0

25OVERLAP

RECEIVING


RELEASEINDICATION

(ERROR)

STOPT302


RELEASECR

0

ANY STATEEXCEPT

0, 2, 10, 25


ERRORINDICATION

STOP ALL TIMERS

RELEASEB-CHANNEL

IF NECESSARY

RELEASECR

0

10ACTION

T309RUNNING

?

STARTT309

DL-ESTABLISHREQUEST

10ACTIVE

RELEASEB-CHANNEL

IF NECESSARY

T309 IS OPTIONAL IN THE USER SIDE

NO TEXT FOR THIS EVENT

NOTE 1

5.8.9 5.8.9 5.8.9 5.8.9

NOTE 1:

NOTE 2:

N

Y


ETS 300 102-2: December 1990

T322RUNNING

?

STATUSENQUIRY

STARTT322

STATUS

STOPT309

IF RUNNING

DL-ESTABLISHCONFIRMATION

10ACTIVE

TIMEOUTT309

10ACTIVE

ERRORINDICATION

RELEASEB-CHANNEL

IF NECESSARY

RELEASECR

0

NOTE 3

5.8.9 5.8.9

ANY STATEEXCEPT

0, 19

STATUS(CS=M)

T322RUNNING

?

CAUSE=#97

?

CAUSE=#30

?

STOPT322

SAMESTATE

SAVE CAUSEAND

CALL STATE

M=0?

COMPATIBLESTATE

ERRORINDICATION

ERRORINDICATION

RELEASE

STARTT308

19

0

RELEASEB-CHANNEL

IF NECESSARY

RELEASECR

NOTE 2

5.8.10, 5.8.11

NOTE 1:

NOTE 2:

NOTE 3:

T309 IS OPTIONAL IN THE USER SIDE

ACTION ON RECEIPT OF STATUS INDICATING A COMPATIBLECALL STATE IS IMPLEMENTATION DEPENDENT

T322 MUST BE STOPPED ON RECEIPT OF A CLEARINGMESSAGE

NOTE 1

N

Y

N

N

Y

Y

Y

N

Y

N

Y

N


ETS 300 102-2: December 1990

GLOBAL CALL REFERENCE

STATUS

REST 0

RESTART

REST 0NULL

UNEXPECTEDMESSAGE

MANAGEMENTRESTARTREQUEST

STATUS

REST 0

N=0

RESTART

STARTT316

AREANY OF THE

INDICATED CHANNELSALLOWED TO BE

RESTARTED ?

TRANSLATE INTOINDIVIDUAL CALL

REFERENCESSTATUS

REST 0

ANYESTABLISHED CALL

REFERENCE ASSOCIATEDWITH THE

INDICATEDCHANNEL ?

RESTARTREQUEST

T317STARTED ?

STARTT317

RESTARTCONFIRM

ALLINDICATED

CHANNELS ?

REST 2

TO Q.931 PROTOCOL CONTROLSPECIFIED CALLREFERENCES

5.8.3.2 (f)5.5.2 5.5.1

+ +

FROM SYSTEMMANAGEMENT

THE IDENTITYOF THECHANNEL TOBE RESTARTIS INCLUDED

ANYESTABLISHED CALL

REFERENCE ASSOCIATEDWITH THE

INDICATEDCHANNEL ?

RESTARTREQUEST

T317STARTED ?

STARTT317

RESTARTCONFIRM

ALLINDICATED

CHANNELS ?

REST 1

TO Q.931PROTOCOLCONTROLSPECIFIED CALLREFERENCES

ANYSTATE

STOPANY TIMERS

RELEASEINDICATION

FROM GLOBAL CALLREFERENCE CONTROL

RELEASEB-CHANNEL

IF NECESSARY

RELEASECR

RESTARTCONFIRM

0

TO GLOBAL CALLREFERENCE CONTROL

NOTE 1: REF. SECTION 5.5

ALL FLAGS (e.g. "REST ACK, T317 EXPIRED, REST RESP") CLEAREDALL TIMERS STOPPED

RESTARTREQUEST

Y

N

Y

N

N

Y

N

Y

Y

N

Y

N

Y

N

NOTE 1


ETS 300 102-2: December 1990


STATUS TIMEOUTT316

N=N+1INCOMPATIBLE

CALL STATE?

STOP ALLTIMERS, IF ANYARE RUNNING

INCLUDE ANYRELEVANT INFO

RECEIVED IN STATUS

MANAGEMENTRESTART CONFIRM

REST 0

N=2

INDICATE THATRESTART HAS

FAILED

MANAGEMENTRESTARTCONFIRM

REST 0

RESTART

STARTT316

REST 1

INFORM LAYERMANAGEMENT

REST 1

MANAGEMENTRESTART CONFIRM

REST 0

RESTARTACKNOWLEDGE

STOPT316

REST RESPON ?

AREALL REQUESTED

CHANNELSACKNOWLEDGED

?

T317 EXPIREDON ?

INDICATE RESTARTSUCCESSFULLY

COMPLETED

INCLUDE THEIDENTITY OF THE

NON-RESTARTED CH.

UNEXPECTEDMESSAGE

STATUS

REST 1

STORE CHANNEL ID.RECEIVED IN THE

RESTART ACKNOWLEDGE

REST ACK ON

REST 1

RESTARTCONFIRM

ALLRESPONSES

?

STOPT317

STORECHANNEL ID.

REST 1

RESTACKON

REST RESPON

REST 1

AREALL REQUESTED

CHANNELSACKNOWLEDGED

?

INDICATE RESTARTSUCCESSFULLY

COMPLETED

INCLUDE THEIDENTITY OF THENON-RESTARTED

CHANNEL

MANAGEMENTRESTARTCONFIRM

REST 0

REST 1

T317 EXPIRED ON

RESTACK ON

?

TIMEOUTT317

REST 1RESTARTREQUEST

NOTE 1:

NOTE 2:

DEFAULT MAXIMUM VALUE OF N IS 2

T317 IS OPTIONAL (REF. SECTION 9.2)

5.8.3.2 (f)5.5.15.5.1

5.5.2

N

NOTE 1

Y

Y

N

Y

N

Y

Y

N

N

Y

N

N

Y

Y

NN

Y


ETS 300 102-2: December 1990


REST 2R E S T A R T

S T A T U S

INCOMPATIBLECALL STATE

?

I N F O R ML A Y E R

M A N A G E M E N T

REST 2

T I M E O U TT317

R E S T A R TC O N F O R M

UNEXPECTED

MESSAGE

S T A T U S

REST 2

ALLR E S P O N S E S

?

S T O PT317 S T O R E

CHANNEL ID.ANY

C H A N N E LR E S T A R T E D

?

MAINTENANCEACTION

REST 0

INCLUDE ID.OF RESTARTED

C H A N N E L S

R E S T A R TA C K N O W L E D G E

REST 0

REST 2

5.8.3.2 (f)5.5.25.5.2

N

Y

Y

N

Y

N

Figure 62: User Side SDL Diagram

ETS 300 102-2: December 1990

History

Document history

December 1990 First Edition

February 1996 Converted into Adobe Acrobat Portable Document Format (PDF)

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