Also, on the same lines, http://www.rfc-editor.org/rfc/rfc3863.txt might also help!
* Please do not take print out of this e-mail unless its absolutely necessary * -----Original Message----- From: [email protected] on behalf of Simith Nambiar Sent: Thu 1/29/2009 6:44 PM To: Iñaki Baz Castillo Cc: sip-implementors Subject: Re: [Sip-implementors] Monitorizing "line" instead of user/extension > Hi, I wonder which RFC defines the following escenario (AFAIK it's not > feasible with RFC 4235): > > PSTN / SIP provider > | > | > | > | > [ PBX / B2BUA ] > / | \ > / | \ > [ phone A ] [ phone B ] [ phone C ] > > > 1) The PBX receives a PSTN with callerid 12345. > 2) The PBX performs some random algorithm or queue logic so "phone C" > receives the INVITE. > 3) phone A has a dialog subscription to any call from PSTN and > captures the call. > > I can't imagine how to do the step 3. AFAIK RFC 4235 requires a > subscription for an specific AoR, and I cannot know which will be that > AoR since it depends on the PSTN phone calling. Thisis, the INVITE the > PBX sends to phone C would be: > > INVITE sip:c...@ip_c SIP/2.0 > From: <sip:12...@domain> > > A "solution" would be phone A subscribing to dialog presence of both > phone B and phone C, but this is not scalable (imagine 100 phones). > > What I mean is that every call capture solutions I've seen are based > on subscription to an specific AoR, so when that AoR receives an > INVITE we can capture it, but what I'm looking for is a subscription > for non specific AoR, but for calls *from* a SIP device (in this case > the PBX). > > How could I achieve it? any document/RFC? > > > [Simith] I'am guessing , if you have all your PBX extensions in your Resource List document, and then SUBSCRIBE to the Resource List SIP URI of the PBX, which has all your extensions , won't you get the Presence of all your extensions ? similarly, For dialog events, probably you could include the package - dialog. Please see http://www.rfc-editor.org/rfc/rfc4826.txt , maybe this could help ! Cheers, Simith > > > > ------------------------------------------------------------------------ > > Internal Virus Database is out-of-date. > Checked by AVG Free Edition. > Version: 7.1.361 / Virus Database: - Release Date: <unknown> > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors EMAIL DISCLAIMER : This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. Any unauthorised distribution or copying is strictly prohibited. If you receive this transmission in error, please notify the sender by reply email and then destroy the message. Opinions, conclusions and other information in this message that do not relate to official business of Mascon shall be understood to be neither given nor endorsed by Mascon. Any information contained in this email, when addressed to Mascon clients is subject to the terms and conditions in governing client contract. Whilst Mascon takes steps to prevent the transmission of viruses via e-mail, we can not guarantee that any email or attachment is free from computer viruses and you are strongly advised to undertake your own anti-virus precautions. Mascon grants no warranties regarding performance, use or quality of any e-mail or attachment and undertakes no liability for loss or damage, howsoever caused. _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
