Tried the following, still doesn't work.
1. I talked with
voip.ms. They think its Obi. But I sent them another email regarding their rtpholdtimeout setting and see what they'll say.
2. I tried setting RTP KeepAliveInterval to 30, 10, 3, and 1. (this is suppose to fix the issue, it didn't.)
3. I tried set different service provider to
Anveo.com, same result.
4. I tried enabling KeepAliveServer (under SP1).
5. I tried direct connection to internet (no router).
6. I am using the latest firmare 3.0.1 (Build: 3932)
Any other ideas?
What about this "DSCPMark" setting?
Or the bunch of Timer setting under ITSP Profile-SIP?