I setup a freephoneline account (with unlock sip key) on my Obi200.
It works great but 5 min after it's always sound busy.
If I reboot the obi200, I am able to receive calls for 5 min but after that my phone does not ring and it sounds busy for who is trying to reach me.
I am new with obi, dashboard show green light and freephoneline show status SIP Status: connected SIP User Agent: OBIHAI/OBi200-3.0.1.4477
edit: it looks that there is already a post about this(http://www.obitalk.com/forum/index.php?topic=7340.0), sorry.