That's going to be pretty phone-specific. How about asking your phone
supplier to fix their phone so that it responds to OPTIONS correctly?
________________________________
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Olivier
Sent: 08 January 2008 12:50
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)
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