Hi, I am having jittery voice problems. Am testing local network calls and the internal phones ring but the voice is distorted. I am behind a nat and am using xlite softphone and a draytek router with the option to add a sip user.
Could someone explain anything in regards to RTP etc.
I have port forwarded UDP 5060 and UDP 6000 and 8000 to my asterisk server.
There is no option to port forward a range of port in Vigor2600V which is the router model.
Any info, explanations would be great
Thanks in advance…