Transcript Document 7174849

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
[email protected]
Intelligent Transcoding
Gateway
3pcc:RFC3725
B2BUA
ITG
Standard Process
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
ITG Model
SIP
A
a
Media
SIP
T
a-b, a-c
Media
ITG: Intelligent Transcoding Gateway Model
B
c
Characteristics
• No additional Signaling Session
• Additional codec information
Insertion at T
• A new opportunity of Internet
Telephony Service Provider
A new opportunity
T6
Voice
Wireline
Wireless
T1
PSTN
T3
Text
T2
Internet
3GPP
Wireless IP Phone
T5
3GPP2
T4
Video/Voice
Next Steps
• Does ITG have any critical error?
• Next Step
–
–
–
–
Refinement of ITG
More detailed procedures
Scenarios
Reference: draft-ietf-sipping-transcframework-00.txt