6.voip signaling call control

8/9/2019 6.VoIP Signaling Call Control

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1 2005 Cisco Systems, Inc. All rights reserved. Cisco PublicIP Telephony

VoIP Signaling and Call Control

Cisco Networking Academy Program


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Need for Signaling and Call Control


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Model for VoIP Signaling andCall Control

VoIP signaling components

Endpoints

Common control

Common control components

Call administration

Accounting


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Call Control Models

H!"!

SIP

M#CP

H"$%&Megaco protocol

SAP

'(SP

Cisco CallManager


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(ranslation )etween Signaling and CallControl


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'(P Sessions


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Call *eature Negotiation


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Call Administration and Accounting

Administration

Monitors call acti+ity

Monitors resource utili,ation

Supports user ser+ice re-uests

Accounting

Maintains call detail records


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Call Status


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Address 'egistration



Address 'esolution



Admission Control



Centrali,ed Call Control


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.istributed Call Control



Centrali,ed Call Control +s .istributed CallControl


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Configuring H!"!


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H!"! and Associated 'ecommendations


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H!"! Adapted to IP


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H!"! #ateways


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H!"! #atekeepers


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Multipoint Conference Components


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Component 'elations0ips for CallEstablis0ment and Management

Endpoint 1gateway2 to endpoint 1gateway2

Endpoint 1gateway2 to gatekeeper

#atekeeper to gatekeeper


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'AS Messages


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H!"! )asic Call Setup


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H!"! 3*ast Connect4 Call Setup


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*inding and 'egistering wit0 a #atekeeper


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Call *low wit0 a #atekeeper


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Multipoint Conferences


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Scalability wit0 Multiple #atekeepers


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Call *low wit0 Multiple #atekeepers


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Sur+i+ability Strategies

HS'P

#ateway preconfigured for two gatekeepers or formulticast disco+ery

Multiple gatekeepers configured for t0e same

prefi5 Multiple gateways configured for t0e same prefi5

H!"! replication strategies include t0efollowing6


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H!"! Pro5y Ser+er


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Cisco Implementation of H!"!


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Configuration E5ample


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#ateway 7

Configuring t0e #ateways


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#ateway "

Configuring t0e #ateways 1Cont2


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Configuring t0e #atekeepers 1Cont2

#atekeeper "


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E5ample6 s0ow Command


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Configuring M#CP


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M#CP and Associated Standards

M#CP is defined in '*C "89:;


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M#CP Components


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Endpoints

Eig0t types of endpoints are defined in '*C "89:6

.igital c0annel

Analog line

Announcement ser+er access point

IV' access point

Conference bridge access point

Packet relay

@iretap access point

A(M trunk side interface


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Endpoint Identifiers


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#ateways and (0eir 'oles

(runk gateway SS8 IS>P

(runk gateway M*

NAS

Combined NAS&VoIP gateway

Access gateway

'esidential gateway

Announcement ser+ers


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)asic M#CP Concepts

Calls and connections

E+ents and signals

Packages and digit maps


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Calls and Connections


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Multipoint Calls


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E+ents and Signals

E+ents6

Continuity detection 1as a result of a continuity test2

Continuity tone

.(M* digits

*a5 tones

Hookflas0

Modem tones


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E+ents and Signals 1Cont2

Signals6

Answer tone

)usy tone

Call waiting tone

Confirm tone

Continuity test

Continuity tone

.ial tone

.istincti+e ringing 1982

.(M* tones

Intercept tone

Network congestiontone


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Packages

)asic packages 1generic media; .(M*; M*; trunk;line; 0andset; '(P; NAS; announcement ser+er;script2

CAS packages 1'*C !9?$2

)usiness telep0one packages 1'*C !7$=2


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#ateways and (0eir Packages


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.igit Maps


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Control Commands

EndpointConfiguration 1EPC*2

Notification'e-uest 1'BN(2

Notify 1N(*2

CreateConnection 1C'CD2

ModifyConnection 1M.CD2

.eleteConnection 1.CD2

AuditEndPoint 1A>EP2

AuditConnection 1A>CD2

'estartInProgress 1'SIP2


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Call *lows


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Cisco Implementation of M#CP

>nderstanding )asics of


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>nderstanding )asics ofCisco CallManager

7 Create an M#CP #ateway

" Configure t0e *D Ports

! (est t0e P0ones for ocal Connecti+ity

)asic CallManager Configurationfor M#CP #ateway Support6

Cisco CallManager Implementation and Call


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Cisco CallManager Implementation and Call*lowsF'egistration

Cisco Call Manager Implementation and


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Configuring an M#CP 'esidential #ateway

ccm-manager mgcp

!

mgcp

mgcp call-agent 172.20.5.20

!

voice-port 1/0/0

!

voice-port 1/0/1

!

dial-peer voice 1 pots

application MGCPAPP

port 1/0/0

!

dial-peer voice 2 pots

application MGCPAPPport 1/0/1

!


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Configuring an M#CP (runk #ateway

!

ccm-manager-mgcp

mgcp 4000

mgcp call-agent 20.15.202.12 4000

!

controller "1 1/0

#raming es#

cloc$ so%rce internal

ds0-gro%p 1 timeslots 1-24 t&pe none service mgcp

!

controller "1 1/1

#raming es#

cloc$ so%rce internal

ds0-gro%p 1 timeslots 1-24 t&pe none service mgcp

!voice-port 1/0'1

!

voice-port 1/1'1

!


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E5ample6 s0ow Command

(o%ter) s*o+ mgcp statistics

,P p$ts r t

,nrecognied r p$ts 0 MGCP message parsing errors 0

%plicate MGCP ac$ t 0 nvalid versions co%nt 0

CreateConn r 4 s%ccess#%l 0 #ailed 0

eleteConn r 2 s%ccess#%l 2 #ailed 0Modi#&Conn r 4 s%ccess#%l 4 #ailed 0

eleteConn t 0 s%ccess#%l 0 #ailed 0

3oti#&(e%est r 0 s%ccess#%l 4 #ailed 0

A%ditConnection r 0 s%ccess#%l 0 #ailed 0

A%ditndpoint r 0 s%ccess#%l 0 #ailed 0

(estartnProgress t 1 s%ccess#%l 1 #ailed 0

3oti#& t 0 s%ccess#%l 0 #ailed 0AC6 t 3AC6 t 0

AC6 r 0 3AC6 r 0

P address ased Call Agents statistics'

P address 10.24.17.8 "otal msg r s%ccess#%l

#ailed 0


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