As using OPTIONS requests main benefit is to non-phone specific, what shall we do when most vendors do not comply with RFC ?
2008/1/9, Raj Jain <[EMAIL PROTECTED]>: > > This issue of phone vendors not supporting OPTIONS according to RFC 3261 > often comes up on this list. Like Kevin Fleming said, an OPTIONS request > is > supposed to be responded in the same way as an INVITE. Almost all SIP > phone > vendors have construed OPTIONS as some kind of a keep-alive request, which > is wrong. > > Can we ask the phone vendors to play by the book? > > -- > Raj > > > ________________________________ > > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Olivier > Sent: Tuesday, January 08, 2008 7:50 AM > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: Re: [asterisk-users] How to check if a SIP phone is > forwardedwithout ringing it ? > > > 2008/1/7, Kevin P. Fleming <[EMAIL PROTECTED]>: > > Olivier wrote: > > > Is there way for an Asterisk server to check if a sip > phone is forwarded > > without bothering phone's user ? > > No. > > > I was thinking of some Alert-Info option that would let > the phone reply > > with a 302 Moved Temporarily or 182 Queued message and > not > let the phone > > ring or display anything on its screen. > > According to the SIP RFC, a SIP endpoint is supposed to > respond to an > OPTIONS message the same way that it would respond to an > INVITE message > with the identical destination, but I've never seen a > phone > respond to > an OPTIONS message with anything but '200 OK', even when a > redirect > (forward) is in place. > > > So, the alternative option is to play with html and use phone > embedded html server to get this redirection data. > > Cheers > > > > -- > Kevin P. Fleming > Director of Software Technologies > Digium, Inc. - "The Genuine Asterisk Experience" (TM) > > > > > > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >
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