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SDP Offer Answer Examples

SDP Offer Answer Examples. Alan Johnston & Robert Sparks. Motivation. Experience from SIPit Lack of interesting SDP in SIP Call Flows Usage critical in some uses: Codec negotiation 3pcc Call hold. Approach . Brief discussion of motivation and result of scenario.

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SDP Offer Answer Examples

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  1. SDP Offer Answer Examples Alan Johnston & Robert Sparks draft-johnston-mmusic-offer-answer-examples-00.txt

  2. Motivation • Experience from SIPit • Lack of interesting SDP in SIP Call Flows • Usage critical in some uses: • Codec negotiation • 3pcc • Call hold draft-johnston-mmusic-offer-answer-examples-00.txt

  3. Approach • Brief discussion of motivation and result of scenario. • Complete Offer/Answer (sometimes with 2nd exchange) SDP messages • Include examples of: • multiple codecs, media types, direction attributes, connection addresses, dynamic payloads, etc. draft-johnston-mmusic-offer-answer-examples-00.txt

  4. Contents • Codec Negotiation and Selection • Hold and Resume • Addition and Deletion of Streams • 3pcc draft-johnston-mmusic-offer-answer-examples-00.txt

  5. Plan • Careful review by implementors • Addition of new scenarios • Suggestions most welcome • WG interest? draft-johnston-mmusic-offer-answer-examples-00.txt

  6. Alan Johnston alan.johnston@wcom.com sip:alan@digitalari.com Robert Sparks rsparks@dynamicsoft.com sip:rsparks@dynamicsoft.com Contacts draft-johnston-mmusic-offer-answer-examples-00.txt

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