Hi,
Attached file is missing?
Can you send me the log-cat?
Also, to know more detail about the issue, I need to check the source code.
For better and quick look up, can you provide teamviewer access to check it and let you know How I can fix this.
I am android app developer and have worked on voip where client provide the detail of paid API he was going to use.
There are many VOIP provider, which one you are using?
Looking forward
thanks
Gurbir