Hi all, We are evaluating the 3CX Phone System for our business and are very charmed by its interface and easy setup. We have added a few extensions and linked those to our Aastra IP phones, and added an outbound number we have with 3rd party VoIP provider to test things. Inbound calls, outbound calls, transferring cals, music on hold... everything works. The problem occurs when we try using the voicemail or digital receptionist. We get routed to the voicemail agent and then hear a voice saying "An error quit an IVR session, sorry" - then get disconnected. We activated debug logging and this is what's happening, although I more or less hoped to see a few lines telling what's actually going wrong: Code: 12:22:22.337 [CM503008]: Call(1): Call is terminated 12:22:16.618 Session 51 of leg C:1.1 is confirmed 12:22:16.493 [CM503007]: Call(1): Device joined: sip:firstname.lastname@example.org:40600;rinstance=272de672185ba091 12:22:16.493 [CM503007]: Call(1): Device joined: sip:email@example.com:5060 12:22:16.478 [MS210003] C:1.1:Answer provided. Connection(transcoding mode[unsecure]):xxxxxxxxx:9000(9001) 12:22:16.478 [MS210001] C:1.2:Answer received. RTP connection[unsecure]: 127.0.0.1:40610(40611) 12:22:16.478 Remote SDP is set for legC:1.2 12:22:16.478 [CM505001]: Ext.999: Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [3CX Voice Mail Menu] PBX contact: [sip:firstname.lastname@example.org:5060] 12:22:16.478 [CM503002]: Call(1): Alerting sip:email@example.com:40600;rinstance=272de672185ba091 12:22:16.337 [CM503025]: Call(1): Calling Ext:Ext.999@[Dev:sip:firstname.lastname@example.org:40600;rinstance=272de672185ba091] 12:22:16.337 [MS210002] C:1.2:Offer provided. Connection(transcoding mode): 127.0.0.1:7000(7001) 12:22:16.322 [CM503004]: Call(1): Route 1: Ext:Ext.999@[Dev:sip:email@example.com:40600;rinstance=272de672185ba091] 12:22:16.322 [CM503010]: Making route(s) to <sip:100@xxxxxxxxx:5060;user=vmail> 12:22:16.322 [MS210000] C:1.1:Offer received. RTP connection: xxxxxxxxx:19740(19741) 12:22:16.306 Remote SDP is set for legC:1.1 12:22:16.306 [CM505003]: Provider:[3rd party VoIP provider] Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [xxxxxxxxx] PBX contact: [sip:3555@xxxxxxxxx:5060] 12:22:16.306 [CM503001]: Call(1): Incoming call from xxxxxxxxx @(Ln.10000@3rd party VoIP provider) to <sip:100@xxxxxxxxx:5060;user=vmail> 12:22:16.291 [CM503012]: Inbound out-of-office hours rule (unnamed) for 10000 forwards to VM:100 We're running the latest version of 3CX Phone System on a fresh install of Windows Server 2008 R2, with Desktop Experience and all enabled. Any clues?