[Asterisk-Users] SIP channel unavailable/busy/really not there

[Steve Kennedy]

Is there a way to differentiate between a SIP address which hasn't
registered (but is within sip.conf) and one that's not there at all
(i.e. not in sip.conf) using a straight dialplan.

I'd like to differentiate actions depending the state of a SIP device
and whether it's in my config or not (if that makes sense, basic automap
of dial-in lines to sip phones, but if they've turned it off, different
error from a line not mapped to a phone).

Asterisk-1.2.6 ...


Steve

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