[OpenSIPS-Users] Call Spy in opensips

[Bogdan-Andrei Iancu]

Hi Antonio,

Antonio Anderson Souza wrote:
> 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.
theoretically yes (even without the b2bua), but you need more than 
simply forking the RTP stream - you need to mix 2 RTP stream (both 
caller and callee) in order to send to the listening SIP device...

Also, you may have issues with codec compatibility - like you may have 1 
or 2 codecs between caller and callee and maybe the listening device 
does not support them.

Regards,
Bogdan
>
> Best regards,
>
> Antonio Anderson Souza
> Voice Technology
> http://www.antonioams.com
>
>
> On Mon, May 24, 2010 at 9:15 AM, Bogdan-Andrei Iancu 
> <bogdan at voice-system.ro <mailto:bogdan at voice-system.ro>> 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 <http://www.voice-system.ro>
>
>
>     _______________________________________________
>     Users mailing list
>     Users at lists.opensips.org <mailto:Users at lists.opensips.org>
>     http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
> Users mailing list
> Users at lists.opensips.org
> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>   


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