[Kamailio-Users] NAThelper and multipart SDP

[Andreas Granig]

Andreas Sikkema wrote:
> On Jun 25, 2009, at 12:24 AM, Iñaki Baz Castillo wrote:
>> El Jueves, 25 de Junio de 2009, Raúl Alexis Betancor Santana escribió:
>>> I think he is speaking about LAW requirements about
>>> call-recording/call-interception
>>
>> And why is forking required for that? if the audio goes through a 
>> rtpproxy,
>> why is it required to fork it? why doesn't the recording take place in 
>> the
>> same host?
> 
> Because not every country allows telecom operators to record to WAV 
> files on a generic machine and email/ftp/whatever every single file once 
> a day to the authorities. Usually they want "realtime" access and in 
> those cases you want to fork the media (and the signalling probably, I 
> don't know for sure).
> 

Exactly. There are countries requiring for example "PacketCable Event 
Messages" compliant messages sent to LEA. Beside that, also 
corresponding media has to be handed over. Just as an example.

This is a fact we unfortunately have to live with, no matter if OpenSER, 
Kamailio, or Nortel CS2k or whatever is deployed...

Andreas