[asterisk-users] No change in payload. (SDP)

[Aditya Kumar]

Thanks a lot Kevin for the reply




________________________________
From: Kevin P. Fleming <kpfleming at digium.com>
To: Asterisk Users Mailing List - Non-Commercial Discussion <asterisk-users at lists.digium.com>
Sent: Thu, April 29, 2010 5:43:15 AM
Subject: Re: [asterisk-users] No change in payload. (SDP)

Aditya Kumar wrote:
> re-posting the question.
> -----------
> use case:
> when some one in my pbx calls 100.200, I have translations well defined,
> Media also (media via asterisk)   --Works.
> when some one calls bob, or for any names I am adding Domain and call is
> been sent to the other party  -- Works, no media...
> 
> For the cases when it is talking to the external work,
> I want Astersik not to do anything with the SDP/payload.
> I want it to send as it is to the external proxy.
> 
> How can I achieve this? so that the SDP/payload will not be modified for
> users talking to the external world.
> I want media for those external devices to come Directly  to the users
> in my pbx. (with out going t asterisk)
> 
> 2) also related question is can I have the xml payload in the originator
> and call is routed via PBX to the Target.
> The xml payload also must be carried to the target.
> is it possible....
> 
> This will really help me as I was held up with this :(

Neither of these are possible; Asterisk is a B2BUA, not a proxy, and as
such the outgoing INVITE is a *different* session from the incoming one.
That means that Asterisk has to be able to understand the SDP content
that arrives so it can forward media between the two sessions.

-- 
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
skype: kpfleming | jabber: kfleming at digium.com
Check us out at www.digium.com & www.asterisk.org

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