I have a Mitel ICP3300 SIP trunked to a FreePBX/Asterisk box created using an ISO downloaded from here last week.
Everything works fine in both directions except that calls from the Mitel world to a conference number (295) on the Asterisk side return ‘The number you have dialed is not in service’. If, however, I setup an extension (290), with a Follow-me of 295, dialling 290 from a Mitel-attached phone gets me to the conference.
Is this expected behaviour or should the Mitel world be able to call Asterisk-based conferences directly as if they were extensions?
Anything worth checking?
Edit: Adding an inbound route with a DID of 295 (pointing to the conference) also works - but is this how it should be done?