A strange bug we are experiencing today:
The extension 200 is always busy.
If i change the extension number on the same phone, all works good, but on this phone the extension 200 doesn't work.
I've make a full reset on the phone, have delete and re-created the extension on pbx, changed the password and have click on "submit & start", more times, but without success.
Temporarily have changed the extension with 210 but i can't understand where is the problem. Why i can't use 200 anymore?
Can you help me?