Hello, Thx already for your first explanation. I'm going to describe more precisaly what is my purpose and what I need:

About my final project:

On one physical machine, I use 4 virtual machines, which are : one with kamailio 3.2.3, asterisk 1.6.13, odbc and Siremis 3.2 An other one is a first client in an other virtual subnet as kamailio.. which reprisents the "public network" ! The two others virtual machines are in the same subnet as Kamailio which represent the "private network" ( like a company and the public network) So, everything in the private network works well, with TLS, Siremis and asterisk, perfect communication!

I still need to make the route between the two subnet but this shoud be easy and what I need precisly is to make a filter on SDP media managed by Siremis like:

This is why I need to use the sdpops module of Kamailio, of course. I need to make the possibilities in Siremis to set things like : this subnet or this address -> remove this media like application, video , only audio can be allow ! This is the filter I need to make it work. Of course in Siremis because , I m simulating calls from public network and into the private network of a company . And it as to be user friendly, not spacially for a computer scientist. This is why, I need to make this simple filter on the media of sdp, and user friendly in Siremis.

Thank u in advance for your help

Best regards