I would say it is an application of RFC3420. But the "callerid" stuff is
new.
We wanted to avoid endless discussions and just have a solution.
CS
________________________________
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Sent: Thursday, August 18, 2005 5:01 PM
To: Christian Stredicke
Cc: Olle E. Johansson; [email protected];
[EMAIL PROTECTED]
Subject: RE: [Sip-implementors] Changing Caller ID name during a
call
Are there any draft or RFC mentioning this mechanism?
Regards,
Udit
"Christian Stredicke" <[EMAIL PROTECTED]>
Sent by: [EMAIL PROTECTED]
08/18/2005 02:48 AM
To
"Olle E. Johansson" <[EMAIL PROTECTED]>
cc
[email protected]
Subject
RE: [Sip-implementors] Changing Caller ID name during a call
We decided that it would be better to add a new mechanism that
only
serves the purpose of changing the caller-ID on the display of
the user
agent. The user agent must indicate that it is able to receive
these
updates with a "Supported: callerid" in the INVITE request or a
response
to the INVITE. If this is the case, the system will send a INFO
message
in the dialog that has the format like in the example below:
INFO sip:[EMAIL PROTECTED] SIP/2.0
From: <sip:[EMAIL PROTECTED]>;tag=123
To: <sip:[EMAIL PROTECTED]>;tag=456
Call-ID: 123456789
CSeq: 1234 INFO
Content-Length: ...
Content-Type: message/sipfrag
From: "A" <sip:[EMAIL PROTECTED]>
To: "B" <sip:[EMAIL PROTECTED]>
The body of the message contains a SIP message fragment
(RFC3420) that
contains the To- and From-headers as they should look like if it
was
possible to change the headers in a dialog (as if they had been
received
in the INFO request, so that the From/To direction is clear).
Tags and
other parameters should not be changed. The user agent should
update the
display and may change the local call history. However, it
should not
change the To- and From-headers of the dialog.
User agents that do not show the Supported header will not
receive the
INFO messages, because some user agents terminate the call upon
receipt
of a unknown media type.
CS
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf
> Of Olle E. Johansson
> Sent: Tuesday, August 16, 2005 10:01 PM
> To: [email protected]
> Subject: [Sip-implementors] Changing Caller ID name during a
call
>
> I am wondering if anyone knows a way to change a caller ID
> name during a SIP call?
>
> I have one dialog to a b2bua and the call is transferred, so
> the other end changes. I tried sending a re-invite with a new
> From: header, but haven't been successful updating the
> display on any phone.
>
> If it's possible, I would be grateful for any advice.
>
> /Olle E. Johansson
> Asterisk developer
> _______________________________________________
> Sip-implementors mailing list
> [email protected]
> http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
>
>
>
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