I'm using a Polycom IP 321 and initially was not receiving incoming calls (would go straight to VM as per failover setting) nor VM notifications.

It is now hit or miss--sometimes the calls come through and the phone works perfectly, sometimes it doesn't.

The service seems to work great otherwise using the adapter.

VOIPo support is giving me the HOST, USERNAME, PASSWORD and nothing else. Are there more comprehensive settings available that will resolve this issue? There are many settings in the Polycom config panel, but my knowledge of VOIP is limited.

Any advice is well appreciated.