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<DIV dir=ltr align=left><SPAN class=129471013-08012008><FONT face=Arial
color=#0000ff size=2>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?</FONT></SPAN></DIV><BR>
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<FONT face=Tahoma size=2><B>From:</B> asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] <B>On Behalf Of
</B>Olivier<BR><B>Sent:</B> 08 January 2008 12:50<BR><B>To:</B> Asterisk Users
Mailing List - Non-Commercial Discussion<BR><B>Subject:</B> Re:
[asterisk-users] How to check if a SIP phone is forwardedwithout ringing it
?<BR></FONT><BR></DIV>
<DIV></DIV>2008/1/7, Kevin P. Fleming <<A
href="mailto:kpfleming@digium.com">kpfleming@digium.com</A>>:
<DIV><SPAN class=gmail_quote></SPAN>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">Olivier
wrote:<BR><BR>> Is there way for an Asterisk server to check if a sip
phone is forwarded<BR>> without bothering phone's user
?<BR><BR>No.<BR><BR>> I was thinking of some Alert-Info option that would
let the phone reply <BR>> with a 302 Moved Temporarily or 182 Queued
message and not let the phone<BR>> ring or display anything on its
screen.<BR><BR>According to the SIP RFC, a SIP endpoint is supposed to
respond to an<BR>OPTIONS message the same way that it would respond to an
INVITE message <BR>with the identical destination, but I've never seen a
phone respond to<BR>an OPTIONS message with anything but '200 OK', even when
a redirect<BR>(forward) is in place.</BLOCKQUOTE>
<DIV><BR>So, the alternative option is to play with html and use phone
embedded html server to get this redirection data.
<BR><BR>Cheers<BR></DIV><BR>
<BLOCKQUOTE class=gmail_quote
style="PADDING-LEFT: 1ex; MARGIN: 0pt 0pt 0pt 0.8ex; BORDER-LEFT: rgb(204,204,204) 1px solid">--<BR>Kevin
P. Fleming<BR>Director of Software Technologies<BR>Digium, Inc. - "The
Genuine Asterisk Experience" (TM)
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