1. Intelligent Transcoding Gateway Model for Transcoding with the Session Initiation Protocol draft-taegyukang-sipping-transc-itg-00.txt 61 IETF - Washington DC, USA Tae-Gyu Kang tgkang@etri.re.kr

2. Intelligent Transcoding Gateway SIP: RFC3261 SDP: RFC2327 SDP OFFER/ANSWER: RFC3264 Standard Process Framework Requirement: RFC3351 ToIP RTPCodecs 3pcc:RFC3725B2BUAITG ITG: Intelligent Transcoding Gateway 3pcc: The Third Party Call Control Transcoding Model B2BUA: Conference Bridge Transcoding Model ToIP: Text over IP draft-ietf-sipping-transc-framework-00.txt

3. ITG Model ITG: Intelligent Transcoding Gateway Model AaAa BcBc T a-b, a-c SIP Media

4. Characteristics No additional Signaling Session Additional codec information Insertion at T A new opportunity of Internet Telephony Service Provider

5. A new opportunity Wireline Wireless PSTN Internet T1 3GPP T2 3GPP2 T3 T4 Text Video/Voice Voice T5 Wireless IP Phone T6

6. Next Steps Does ITG have any critical error? Next Step –Refinement of ITG –More detailed procedures –Scenarios –Reference: draft-ietf-sipping-transc- framework-00.txt