I believe that the B2BUA functionality might be very suitable for such scenario.

http://www.opensips.org/Resources/B2buaTutorial

Adrian

On May 24, 2010, at 8:17 PM, Laszlo wrote:

And would be nice with Mediaproxy too, probably Adrian can comment on this :) I'm a C++ coder myself, so I preferred rtpproxy for our network's LI. BTW, there can be several things regarding the technical implementation, CALEA requirements can be different in each countries, so I don't think an "one size fits all" module will work for LI.

-Laszlo


2010/5/24 Antonio Anderson Souza <[email protected]>
RTPProxy is able to fork the RTPStream in Realtime to a new destination.

I guess it would be possible to implement a module (or enhance some one existent, i think could be a B2B special scenario) in Opensips to create a new branch to a listen destination and interact with RTPPtoxy to fork the RTP Stream of an stablished call to this new destination.

What do you think? This could be an interesting new feature to Opensis supports the Lawful interception requirements.

Best regards,

Antonio Anderson Souza
Voice Technology
http://www.antonioams.com



On Mon, May 24, 2010 at 9:15 AM, Bogdan-Andrei Iancu <[email protected] > wrote:
Hi Nehru,

An idea will be to have rtpproxy in the calls (the media will be relayed
by rtpproxy). And rtpproxy provide the "record" option, that will save
the RTP stream into a local file - after the call is completed, you can
take the RTP files and listen them.

Regards,
Bogdan


Indiver wrote:
> Hi every one,
>
> We got an requirement regarding call spying.I want to know whether call > spying is possible in opensips. I heard that in asterisk they have given > option for silent listening of conversations between two parties with out
> knowing the two parties.
>
> Regards,
> Nehru.
>


--
Bogdan-Andrei Iancu
www.voice-system.ro


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