I know Genband's C20/CS2000 switches support (and default) to using the INFO method for overlapping digits (this is what they call partial dialled digits followed by subsequent digits).
Joel Gerber Network Specialist Network Operations Eastlink E: [email protected] T: 519.786.1241 -----Original Message----- From: SIP Learner [mailto:[email protected]] Sent: July-16-13 10:09 AM To: Brett Tate; sip-implementors Subject: Re: [Sip-implementors] Overlap signaling in a native SIP network Thanks to all! I found one internet draft that propose to use the INFO method to convey subsequent dialed numbers: http://tools.ietf.org/id/draft-zhang-sipping-overlap-01.txt It claimed to resolve the issues related to the INVITE/484/ACK approach in RFC3578, but this draft seems to be deceased only after one revision, don't know what's wrong with it! ------------------ Original ------------------ From: "Brett Tate"<[email protected]>; Date: Tue, Jul 16, 2013 07:56 PM To: "SIP Learner"<[email protected]>; "sip-implementors"<[email protected]>; Subject: RE: [Sip-implementors] Overlap signaling in a native SIP network > In my opinion, if only a SIP network is involved and no gateways are > used, overlap signalling (e.g., the caller sends dialed digits to an > outbound proxy in consecutive separate INVITEs for the outbound proxy > to collect enough information and route the requests) is meaningless, > because there are no physical connections to be established, am I > right? It isn't meaningless; it wastes network resources and the devices would need to agree upon what should occur (i.e. how the digits are collected, et cetera). Even though draft-ietf-bliss-shared-appearances provides a PUBLISH mechanism for seizing an appearance, some vendors might also allow an INVITE/484/ACK exchange to temporarily keep an appearance seized. _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
