ims platform & call flow
DESCRIPTION
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Ericsson Internal | 2012-09-11 | Page 1
Ims: Platform & call flow
Ericsson Internal | 2012-09-11 | Page 2
PLATFORM FOR IMS NODES:
Platforms Nodes
TSP 6 (Dicos and Linux) CSCF 5.0, SLF 2.0 MRFC 5.0, HSS 5.0
IPWorks 6.0 on SUN Netra 240 Or IS 2.0(SUN Solaris, Linux)
DNS/ENUM
SUN HW (SUN Solaris) EMA 5.4, MM 6.0, OSS-RC 7.1.2
HP HW (Linux) MRFP 1.2
IS 2.0 (Linux) SBG 3.1 MGC 6.0/6.1 MGW 2.0
Ericsson Internal | 2012-09-11 | Page 3
TSP and IS are Ericsson platforms IPWorks is an Ericsson Software platform.
These are implemented on SUN hardware or IS and it is used for DNS/ENUM.
All plug-in units are provided with dual - 48V power, duplicated 1/10 GBpS Ethernet and a maintenance bus, via the EGEM.
O & M: S/W & H/W INTERFACES
Ericsson Internal | 2012-09-11 | Page 4
TSP PLATFORM VIEW:
Ericsson Internal | 2012-09-11 | Page 5
Architectural Overview About IMS Common system (ICS) Core Nodes Networking
Ericsson Internal | 2012-09-11 | Page 6
Architectural Overview About IMS Common system (ICS) Core Nodes Networking
Ericsson Internal | 2012-09-11 | Page 7
Interfaces
Ericsson Internal | 2012-09-11 | Page 8
S-CSCF
Home A
2. REGISTER 9. Unauthorized
P-CSCF Visited A
10. Unauthorized1. REGISTER
I-CSCF5. REGISTER
8. Unauthorized
A
GGSN
SGSN
Radio Access Network
SIP-AS
Application level Registration
HSS
3 46
7
Registration
Ericsson Internal | 2012-09-11 | Page 9
P-CSSFVisited B
S-CSCF
Home A
1. INVITE
2. INVITE8. INVITE11. OK
13. OK
15. OK
P-CSCFVisited A
16. OK
S-CSCF
Home B
I-CSCF
7. INVITE
12. OK
4. INVITEI-CSCF
3. INVITE
14. OK
A Calls B
5 6
B
HSS
A
9. INVITE10. OKGGSN
SGSN
Radio Access Network
GGSN
SGSN
Radio Access Network
SIP-AS
Session Establishment
SIP-AS
Call Flow
Ericsson Internal | 2012-09-11 | Page 10
Call flowPSTN / PLMN Interworking
Ericsson Internal | 2012-09-11 | Page 11
SHUBHABRATA MUKHERJEE
1ST LA- LGI & ZIGGO