1 / 3

Mapping of ISUP Overlap Signalling to SIP draft-ietf-sip-overlap-01.txt

Mapping of ISUP Overlap Signalling to SIP draft-ietf-sip-overlap-01.txt. Gonzalo.Camarillo@ericsson.com. Cseq number synchronization. PSTN call using SAMs identified by the Call-ID. To header field changes

blaine
Download Presentation

Mapping of ISUP Overlap Signalling to SIP draft-ietf-sip-overlap-01.txt

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Mapping of ISUP Overlap Signalling to SIP draft-ietf-sip-overlap-01.txt Gonzalo.Camarillo@ericsson.com

  2. Cseq number synchronization • PSTN call using SAMs identified by the Call-ID. • To header field changes • INVITE forks and at least one early dialog is established: different UAS have different Cseq spaces. • Subsequent INVITEs should use the highest Cseq of all the early dialogs. • The UAS can use the Cseq to figure out which INVITE is newer • Alternative proposal: we do not care about the Cseq since we are dealing with different dialogs

  3. Remaining work Agree on the previous issue (Cseq synchronization) Update terminology (call-leg vs. dialog) Resubmit in SIPPING rather than SIP

More Related