SIP Proxy for Transparent IP Masquerading

Dear all,

i am familar with VoIP but i dont know what i need for my prodjekt.

The provider i am using accepts SIP Register only from its own IP Adresse range, so if i try to register from an other ISP to the other once SIP Server it is not working.

I need to to build up something that receives my Sip register and all the other requests and forwardes them transperent to my ISPs SIP Server.

Is it possible to do that with an OpenSER/Opensips configured as proxy?

Is there somebody who can give me some hints how to start?

Thanks a lot

Sebastian

Yes it's possible, but you may need to also proxy the audio, not just the signalling.

Thanks for your fast reply,

sure i thought that i have to do that. Do you know if there is any manual explaining some proxy configuration?

From my Point of view the Documentation on Opensips is a littlebit poor.