What steps will reproduce the problem? 1. 2. 3.

What is the expected output? What do you see instead?

What version of the product are you using? On what operating system?

Please provide any additional information below.

I am using openser as voip server. when i am trying to pstn call with other user-agent (x-lite, bria, jitsi) works fine but with doubango- From App to real phone traffic work well but real phone to App audio is very choppy & delaying.