1. GR010426-1 Presented by Greg Ratta ( ), ITU-T SG 11 Vice-Chairman ITU-T IP/MediaCom 2004 Workshop April 26, 2001

2. GR010426-2 Outline Introduction - What is BICC? BICC Architecture Overview of BICC Capability Set 1 BICC Capability Set 2 and H.248 Summary

3. GR010426-3 What is BICC? BICC provides a means of supporting narrowband ISDN services across a broadband backbone network without impacting the interfaces to the existing N-ISDN network and end-to-end services. The BICC call control signaling protocol is based on N-ISUP signaling The bearer control signaling protocols are based on different bearer technology control signaling protocols (e.g., DSS2 for AAL type 1 and AAL type 2) The BICC call control signaling protocol should not be aware of the actual bearer transport being employed. The binding information is used to reference the bearer.

4. GR010426-4 BICC network architecture

5. GR010426-5 BICC Capability Set 1 Forward and Backward Backbone Network Establishment Transport Call Control via MTP SS7 or ATM Support of most existing narrow band services. New Backbone Network Connection (BNC) with or without Codec Negotiation Reuse of Idle Backbone Network Connection (BNC) Separate Release of Call and Backbone Network Connection (BNC) Bearer Transport Types supported: AAL 1 & AAL 2

6. GR010426-6 Forward bearer set-up and backward bearer set-up

7. GR010426-7 Early bearer +call SETUP request to improve call set-up time

8. GR010426-8 Additional confirmation of bearer CONNECT to prevent speech clipping

9. GR010426-9 Structure of the BICC standardization documentation

10. GR010426-10 BICC Capability Set 2 and Beyond Extend BICC to the Local Exchanges Support IP Bearer, including Tunnelling Support of a Call Mediation Node Function Support Structured AAL1 New Identifiers –Traffic Group –Global Call Reference Extend BICC to Special Resources Nodes (e.g., announcement platforms…etc) See list of features attached to this presentation

11. GR010426-11 Functional architecture of the decomposed gateway ISN With BICC CS 1

12. GR010426-12 Functional architecture of the decomposed gateway A DC X X X B2 B1 High Layer Resource Control SCN Signalling Termination H.225.0 Signalling Termination H.245 Signalling Termination RAS Signalling Termination Z SCN Signalling Transport Termination Low Layer Resource Control Packet and Circuit Media Termination YZ H.248 Decomposed ISN BICC CBC With BICC CS 2

13. GR010426-13 Network Topologies and Reference Points

14. GR010426-14 BICC CS 2 and Beyond Q.1902.1, BICC CS2 Functional Description Q.1902.2, BICC CS2 General functions of messages and signals Q.1902.3, Common Formats and Codes for BICC and ISUP Q.1902.4, BICC protocol elements Q.1902.5, Exceptions to APM in the context of BICC Q.19xx.1, Interworking between BICC and ISUP Q.19xx.2, Interworking between ISUP compatible signalling systems and the BICC protocol Q.19xx.3, Interworking between the H.225.0 Multimedia Call Control protocol in an H.323 network and the BICC protocol Q.19xx.4, Interworking DSS 2 to BICC Q.19xy, Interaction between the INAP protocol and the BICC protocol Q.ibcp, BICC IP Bearer Control Protocol Q.cbc, Call and Bearer Control Protocol Annex E to Q.1901, Signalling Transport Convergence for SCTP + Supplements that document the signalling requirements

15. GR010426-15 Summary BICC CS 1 Standards were completed in 9 months BICC CS 2 uses H.248 in CBC interface All new services in ITU-T SG 11 to be specified for BICC before being added to ISUP or BISUP

16. GR010426-16 BICC Acronyms AALATM Adaptation Layer ACFAccess Control Function ACNAccess Concentration Node AESAATM End System Address AGIApplication Generated Identifier ANIAccess Network Interface APMApplication transport Message ATMAsynchronous Transfer Mode BCFBearer Control Function BFBearer Function BICCBearer Independent Call Control BIWFBearer Interworking Function BNCBackbone Network Connection CSFCall Service Function CSMCall State Model CMNCall Mediation Node B-ISUPBroadband ISUP DSS2Digital Signalling System no.2 GATGeneric Addressing and Transport protocol GFTGeneric Function Transport control GITGeneric Identifier Transport GSNGateway Serving Node INIntelligent Networks IPInternet Protocol ISDNIntegrated Services Digital Network ISNInterface Serving Node ISUPISDN User Part MTP3bMessage Transfer Part no.3b NNINetwork-Network Interface POPPoint of Presence PSTNPublic Switched Telephony Network SNServing Node SPOISignalling Point of Interconnection SS7Signalling System no.7 SSCOPService-Specific Connection-Oriented Protocol STPSignalling Transfer Point SWNSwitching Node TDMTime Division Multiplexing TETerminal Equipment TGTrunk Group TSNTransit Serving Node UNIUser Network Interface VCCVirtual Channel Connection VoIPVoice-over-IP