Intelligent Transcoding Gateway Model for Transcoding with the Session Initiation Protocol draft-taegyukang-sipping-transc-itg-00.txt

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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_at_etri.re.kr

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Intelligent Transcoding Gateway
Standard Process
3pccRFC3725
B2BUA
ITG
ToIP
Framework
draft-ietf-sipping-transc-framework-00.txt
Requirement RFC3351
SDP OFFER/ANSWER RFC3264
RTP
Codecs
SDP RFC2327
SIP RFC3261
ITG Intelligent Transcoding Gateway 3pcc The
Third Party Call Control Transcoding Model B2BUA
Conference Bridge Transcoding Model ToIP Text
over IP
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ITG Model
SIP
SIP
A a
B c
T a-b, a-c
Media
Media
ITG Intelligent Transcoding Gateway Model
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Characteristics

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

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