Thanks littlejohnhill, that worked for me.
Really appreciate you pointing this out. Had the same issue with one SIP trunk carrier. If I had a DID that went directly to an extension, and the extension had FollowMe Enabled going to a cell phone, we had no audio. Setting the Force Answer fixed it for us.
And it is a routing issue, since we have the SIP trunk coming in a specific NIC on the FreePBX (eth1), but most of our other carriers go out eth0. So I’m sure it is something with the routing, since we force traffic to the specific carrier through eth1.
Fax machine fix worked for me oddly enough
Forced answer and fax handling are conceptually the same.