[Asterisk-Users] Busy Extensions.

[Rich Adamson]

> I seem to have almost everything working now. The only problem is all of my extensions seem to 
be busy. I can call out, but not in. Can
> someone point me to the settings in the extensions file that could cause this.

Assuming you're talking about sip phones, what you descibe suggests
the phones have not been properly configured and are not registering
with asterisk.

Do a 'sip show peers'. You should see entries something like this:
3003/3003      2.22.222.1    D    255.255.255.255  5060  Unmonitored
3002/3002    (Unspecified)   D  N 255.255.255.255  0     Unmonitored

where the first entry contains the IP address of the phone that is
"registered", and the second entry is a phone/extension that is not
registered.

If the phone isn't registered, asterisk has no way to reach it to
complete a call.