1 Sip Signal (UDP) 5060 - 5061
2 RTP (UDP) 5004 - 5005
3 STUN (UDP) 10000 - 10001
4 XLITE (UDP) 8000 - 8019
5 Sip Listen (UDP) 5004
6 CAP (UDP) 1026 - 1027
7 CAP2 1026 (UDP) 1026

This is what I have got and it seems to work for me on my netgear dg834g with a TA612V behind it


This was the extra addition that i got from sipgate when asked and i forwarded the above info to them.

you can try 5060, 5083 and 8000-8012 (all UDP).
If you are using X-Lite at the same time, please change port 5060 into 5070 and 8000 into 9000 in your X-Lite configuration.


I hope this helps