Grandstream BT101 don’t register to PBXES

I’ve a problem with my Grandstream BT101 IP phone. My phone is behind a NAT, I’m able to use it with many providers, but I’m not able to register it to PBXES. It can make a call but it cannot receive.

I suppose my case is very similar to this one: http://www1.pbxes.com/forum/thread.php?threadid=765

This is my config: http://cheatbuster.interfree.it/Varie/Gr...nfiguration.htm

And this is the connection log: http://cheatbuster.interfree.it/Varie/Log_Grandstream.htm

In the log you can see the first try to register. The server responds “100 Trying” then “401 Unauthorized”. So the phone tries another registration using the authorization credential, but in this case the server responds only “100 Trying”.

Is there any kind of incompatibility between Grandstream phones and PBXES?

RE: Grandstream BT101 don’t register to PBXES

Your log does not show the phone trying to register but to unregister. Disable "Unregister on reboot" on your phone.