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[asterisk-users] How to check if a SIP phone is forwarded wi


 
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kpfleming at digium.com
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PostPosted: Mon Jan 07, 2008 9:41 am    Post subject: [asterisk-users] How to check if a SIP phone is forwarded wi Reply with quote

Olivier wrote:

Quote:
Is there way for an Asterisk server to check if a sip phone is forwarded
without bothering phone's user ?

No.

Quote:
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.

--
Kevin P. Fleming
Director of Software Technologies
Digium, Inc. - "The Genuine Asterisk Experience" (TM)
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oza-4h07 at myamail.com
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PostPosted: Tue Jan 08, 2008 7:50 am    Post subject: [asterisk-users] How to check if a SIP phone is forwarded wi Reply with quote

2008/1/7, Kevin P. Fleming <kpfleming at digium.com>:
Quote:

Olivier wrote:

Quote:
Is there way for an Asterisk server to check if a sip phone is forwarded
without bothering phone's user ?

No.

Quote:
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

--
Quote:
Kevin P. Fleming
Director of Software Technologies
Digium, Inc. - "The Genuine Asterisk Experience" (TM)


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