Doesn't RFC3960 talk about this very thing?
-Arun
On Wed, May 12, 2010 at 1:14 PM, Paul Kyzivat wrote:
> Technically, SDP in any 18x only serves to indicate where media should
> be *sent*, and has nothing to do with whether you should receive media,
> play received media, etc.
>
> Nor does recei
Technically, SDP in any 18x only serves to indicate where media should
be *sent*, and has nothing to do with whether you should receive media,
play received media, etc.
Nor does receiving a 180 mean you should play local ringback. It merely
says "the other end is being alerted". Nor does receiv
> It is an infamous problem with SIP that a UAC cannot determine whether
> early media is arriving from any of the UASs -- UASs are not required to
> send any signaling before sending early media.
>
> However, it has recently come to my attention that almost all UAs follow a
> much more forgiving
Nitin,
>I checked the TO tag for both 18x and noticed that both are the same.
>Do you think, that after sending 180 ringing(where local ringing should
>generate), if my UAS is sending 183 without SDP will stop the local ringing?
This is up to the implementation whether to play ringing (or) not.
It is an infamous problem with SIP that a UAC cannot determine whether early
media is arriving from any of the UASs -- UASs are not required to send any
signaling before sending early media.
However, it has recently come to my attention that almost all UAs follow a much
more forgiving conventio
From: sip-implementors-boun...@lists.cs.columbia.edu
[sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of Nitin Kapoor
[nitinkapo...@gmail.com]
Now basically we sends initial invite to termination UA and after that we
got 183 with SDP(which means
Hi All,
Thanks for the reply.
Sreeram,
I checked the TO tag for both 18x and noticed that both are the same.
Here i would like to know one more thing..
Do you think, that after sending 180 ringing(where local ringing should
generate), if my UAS is sending 183 without SDP will stop the local ri
>1) Is that the correct behavior that after getting 183 without SDP the
>ringing get stopped, because 183 doesn't have the SDP which means it should
>not generate the ring for destination country.
183 means "the call is being processed.."
Ringing should not happen after 183.
In General
-Original Message-
From: sip-implementors-boun...@lists.cs.columbia.edu
[mailto:sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of
Nitin Kapoor
Sent: Wednesday, May 12, 2010 11:12 AM
To: sip-implementors@lists.cs.columbia.edu
Subject: [Sip-implementors] 183 without SDP stops the
Hi All,
I have the issue with one of my call flow.
Call flow is like that #
“UAC <-SBC <-> Microsoft OCS <--> UAS”
Now basically we sends initial invite to termination UA and after that we
got 183 with SDP(which means the early media get started) on which it asked
PRACK and
Hi SIP Implementors
Have a doubt.
In Distributed mixing model for multi user conference,the person who wants
to join the
conference will send the INVITE request to conference server, The server
first reply that
with 200OK with connection address 0.0.0.0(black hole) by accepting his
media
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