At the moment, when I receive an external call from via my SIP provider, I dial all my internal extensions as follows:
exten => SIP-ID, 1, Dial(SIP/2000&SIP/2001&…, 15, t)
However, sometimes, not all my extensions are online, and Asterisk gives a warning when it can’t find one or more of them.
Is it possible to Dial a ‘group’ of phones or use a pattern in the parameter given to the Dial command? e.g. Dial(SIP/, 15, t)?