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RTCP Summary Report Delivery to SIP Third Parties

This draft defines the usage of RTCP Summary Reports to deliver session summary information to SIP third parties. It covers the definition of event packages, mid-session threshold reports, call flows, message body definition, and examples.

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RTCP Summary Report Delivery to SIP Third Parties

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  1. RTCP Summary Report Delivery to SIP Third Parties Alan Johnston Henry Sinnreich Alan Clark Amy Pendleton draft-johnston-sipping-rtcp-summary-02.txt

  2. Recent Changes • Definition of event package • Event parameter used to request mid-session threshold reports. Default is only end of session summary report. • Call Flows • End of session and mid-session reporting • Message body definition • Example Message draft-johnston-sipping-rtcp-summary-02.txt

  3. NOTIFY sip:collector@chicago.example.com SIP/2.0 Via: SIP/2.0/UDP pc22.example.com;branch=z9hG4bK3343d7 Max-Forwards: 70 To: <sip:collector@chicago.example.com>;tag=43524545 From: Alice <sip:alice@example.com>;tag=a3343df32 Call-ID: k3l43id034kevnx7334s CSeq: 4321 NOTIFY Contact: <sip:alice@pc22.example.com> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY Event: rtcp-xr;threshold Accept: application/sdp, message/sipfrag Subscription-State: active;expires=3600 Content-Type: text/plain Content-Length: ... AlertType:rf LocalMetrics:VQMetrics: plm=loss:05 disc:02 burst=den:0 len:0 gap=den:2 len:0 delay=rt:200 es:140 signal=sig: rerl: n: qs=r:82 xr:82 ml:3.4 mc:3.3 DialogID:38419823470834;to-tag=8472761;from-tag=9123dh311 draft-johnston-sipping-rtcp-summary-02.txt

  4. Open Issues • Event package name is “rtcp-xr” • Should be more general, perhaps “summary-rpt” • Mid-session threshold summary reports • How to specify: event parameter or package name? • Event parameter could also be used to specify body format. • Negotiate threshold value when subscribing? • Format of Message body • ABNF instead of XML • Readability? • Discovery when endpoint registers • Interaction between Registrar and Collector draft-johnston-sipping-rtcp-summary-02.txt

  5. Path Forward • WG Adopt as WG item? draft-johnston-sipping-rtcp-summary-02.txt

  6. Alan Johnston alan.johnston@mci.com Henry Sinnreich Henry.sinnreich@mci.com Contacts Alan Clark alan@telchemy.com Amy Pendleton aspen@nortelnetworks.com draft-johnston-sipping-rtcp-summary-02.txt

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