Incoming phone calls are getting this error message: 21-Oct-2014 14:17:39.834 [CM505003]: Provider:[Broadvox Fusion (IP Based) - US] Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [Broadvox Fusion] PBX contact: [sip:firstname.lastname@example.org:5060] The caller will hear "call transfer failed" message. The odd part is this typically only happens after a longer period of time of no phone calls. If I were to make an outgoing phone call and then receive one, no problem. We are configured with a direct IP so we do not require in/out registration. I have configured Source identification by DID. I am on the latest and greatest version of 3cx. Anyone know why this is happening?