Even when I enabled stun, the problem is still persist.
The FS is oke about 1 month ago. I can make call more that 30 second and it was very stable. And the client is not changed. I was upgrade the FS from stable git couple weeks ago, and then outbound gateway was blocked by third party operator, we did not use the system in 1-2 week. When the gateway was on again, we start using the system again, all the call is like this, even call between extension that has nothing to do with the gateway.
I am trying to fix it by upgrading almost every day. But the problem is still persist.
I am at loss. Any suggestion is very appreciated. Thanks,
Donny