SIP with any RTP

Job ID: 34021022

Budget: $30 – $250 USD

i have asterisk sip server and its working fine with any RTP i set on my system interface.
but in same VM if i copy and make a new server when i try to set any new RTP its not working i dont know whats the issue audio is gone.

so i need you to any how create a system where i can set any rtp as i want.
like 23.23.23.23 or 103.1.1.12 or anything as i want.
(we dont use our public IP as RTP we use any IP on our RTP like a eth0:1 interface ip is:1.1.1.1 so i will use this as a RTP)

you can use any sip server or anything as you want.
i just want to use RTP thats it.

you can to setup this your local system or if you want i can give you server
dont ask me any payment before test.
if you can show me its working and audio is fine you will get payment with bonus.