" It does not forward the UPDATE request as it is a back to back user agent and not a proxy server -- conceptually it is hiding the trunk provider from the pbx and vice versa."
Do you mean that an UPDATE cannot get through sipxbridge? " sipxBridge uses re-INVITE and not UPDATE for session timer." In this particular scenario, UPDATE is used to refresh the media descriptor of the session. It is not related to session timer. As described in RFC 3311: " Once a dialog is established, either early or confirmed, the caller can generate an UPDATE method that contains an SDP offer [3] for the purposes of updating the session. The response to the UPDATE method contains the answer. Similarly, once a dialog is established, the callee can send an UPDATE with an offer, and the caller places its answer in the 2xx to the UPDATE. " Re-INVITE cannot replace UPDATE in some scenarios, e.g. RFC 3960. -----Original Message----- From: M. Ranganathan [mailto:[email protected]] Sent: 10 July 2009 04:40 To: Gabor Paller Cc: [email protected] Subject: Re: [sipx-users] UPDATE method and sipxbridge On Thu, Jul 9, 2009 at 11:43 AM, Gabor Paller<[email protected]> wrote: > Hi, > > > > I have an authenticated SIP trunk, connected over sipxbridge. What I see > that if I send an UPDATE method to the trunk, sipxbridge immediately > responds with 405 Method not allowed, without consulting the trunk. > > > > I wonder, how sipxbridge detects that UPDATE methods are not allowed. When the request is sent to SipXbridge it simply responds with the methods that *it* supports. It does not forward the UPDATE request as it is a back to back user agent and not a proxy server -- conceptually it is hiding the trunk provider from the pbx and vice versa. sipxBridge uses re-INVITE and not UPDATE for session timer. Regards, Ranga > > > > Regards, > > Gabor > > Gabor Paller, Software Architect > OnRelay > > > > Elizabeth House | 39 York Road, London SE1 7NQ, UK | +44 (0) 207 902 8151 | > [email protected] | www.onrelay.com > > > > OnRelay in the News: > > BT Trials OnRelay FMC Solution > > http://www.computing.co.uk/vnunet/news/2239084/bt-trial-fixed-mobile > > > > This electronic message transmission contains information from OnRelay, > Ltd., that may be confidential or privileged. The information is intended > solely for the recipient and use by any other party is not authorised. If > you are not the intended recipient, be aware that any disclosure, copying, > distribution or use of the contents of this information or any attachment, > is prohibited. If you have received this electronic transmission in error, > please notify us immediately by electronic mail ([email protected]) and > delete this message, along with any attachments, from your computer. > Registered in England No 04006093 | Registered Office 1st Floor, 236 Gray's > Inn Road, London WC1X 8HL > > > > > > _______________________________________________ > sipx-users mailing list [email protected] > List Archive: http://list.sipfoundry.org/archive/sipx-users > Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-users > sipXecs IP PBX -- http://www.sipfoundry.org/ > -- M. Ranganathan _______________________________________________ sipx-users mailing list [email protected] List Archive: http://list.sipfoundry.org/archive/sipx-users Unsubscribe: http://list.sipfoundry.org/mailman/listinfo/sipx-users sipXecs IP PBX -- http://www.sipfoundry.org/
