Can anyone tell me what MGCP error that I'm getting means? The hardware is a MRP200 in a Cisco 7750 PBX. (Its a FXO blade with 2 slots, first one has a 4 port FXO card and the second has 2 port FXO card. It recognises those correctly, at least to the point of this error.) MGCP Debugging Enabled MGCP read: NTFY 13 aaln/S0/SU0/0@MRP200-S1 MGCP 0.1 X: 1adace42 O: L/hd from 10.0.2.6:2427Verb: 'NTFY', Identifier: '13', Endpoint: 'aaln/S0/SU0/0@MRP200-S1', Version: 'MGCP 0.1' 3 headers, 0 lines Handling request 'NTFY' on aaln/S0/SU0/0@MRP200-S1 Transmitting: 200 13 OK to 10.0.2.6:2427 -- Endpoint 'aaln/S0/SU0/0@MRP200-S1-1' observed 'hd' -- Creating connection for aaln/S0/SU0/0@MRP200-S1-1 in cxmode: sendrecv callid: 6b49143d0fa02584 We're at 10.0.2.2 port 19844 Answering with capability 4 Posting Request: CRCX 7 aaln/S0/SU0/0@MRP200-S1 MGCP 1.0 C: 6b49143d0fa02584 L: p:20, a:PCMU M: sendrecv X: 0fa02584 v=0 o=root 2307 2307 IN IP4 10.0.2.2 s=session c=IN IP4 10.0.2.2 t=0 0 m=audio 19844 RTP/AVP 0 a=rtpmap:0 PCMU/8000 to 10.0.2.6:2427 -- MGCP Asked to indicate tone: dl on aaln/S0/SU0/0@MRP200-S1-1 in cxmode: sendrecv Posting Request: RQNT 8 aaln/S0/SU0/0@MRP200-S1 MGCP 1.0 X: 0fa02584 R: hu(N), hf(N), D/[0-9#*](N) S: dl to 10.0.2.6:2427 -- MGCP mgcp_new(MGCP/aaln/S0/SU0/0@MRP200-S1-1) created in state: Down MGCP read: 200 7 OK I: 5 v=0 o=- 5 0 IN IP4 10.0.2.6 s=Cisco SDP 0 c=IN IP4 10.0.2.6 t=0 0 m=audio 16948 RTP/AVP 0 100 a=rtpmap:100 X-NSE/8000 a=fmtp:100 200-202 a=X-sqn:0 a=X-cap: 1 audio RTP/AVP 100 a=X-cpar: a=rtpmap:100 X-NSE/8000 a=X-cpar: a=fmtp:100 200-202 a=X-cap: 2 image udptl t38 from 10.0.2.6:2427Verb: '200', Identifier: '7', Endpoint: 'OK', Version: '(null)' 2 headers, 13 lines Capabilities: us - 4, them - 4, combined - 4 Non-codec capabilities: us - 1, them - 0, combined - 0 MGCP read: 510 8 configured protocol version conflict from 10.0.2.6:2427Verb: '510', Identifier: '8', Endpoint: 'configured', Version: 'protocol version' 1 headers, 0 lines -- MGCP asked to indicate -1 'UNKNOWN' condition on channel MGCP/aaln/S0/SU0/0@MRP200-S1-1 -- MGCP Asked to indicate tone: on aaln/S0/SU0/0@MRP200-S1-1 in cxmode: sendrecv Posting Request: RQNT 9 aaln/S0/SU0/0@MRP200-S1 MGCP 1.0 X: 0fa02584 R: hu(N), hf(N), D/[0-9#*](N) to 10.0.2.6:2427 -- MGCP Asked to indicate tone: cg on aaln/S0/SU0/0@MRP200-S1-1 in cxmode: sendrecv Posting Request: RQNT 10 aaln/S0/SU0/0@MRP200-S1 MGCP 1.0 X: 0fa02584 R: hu(N), hf(N), D/[0-9#*](N) S: cg to 10.0.2.6:2427 -- MGCP mgcp_hangup(MGCP/aaln/S0/SU0/0@MRP200-S1-1) on aaln/S0/SU0/0@MRP200-S1 -- Delete connection 5 aaln/S0/SU0/0@MRP200-S1-1 with new mode: sendrecv on callid: 6b49143d0fa02584 Posting Request: DLCX 11 aaln/S0/SU0/0@MRP200-S1 MGCP 1.0 C: 6b49143d0fa02584 X: 0fa02584 I: 5 to 10.0.2.6:2427 -- MGCP Asked to indicate tone: ro on aaln/S0/SU0/0@MRP200-S1-1 in cxmode: sendrecv Posting Request: RQNT 12 aaln/S0/SU0/0@MRP200-S1 MGCP 1.0 X: 0fa02584 R: hu(N), hf(N), D/[0-9#*](N) S: ro to 10.0.2.6:2427 MGCP read: 510 9 configured protocol version conflict from 10.0.2.6:2427Verb: '510', Identifier: '9', Endpoint: 'configured', Version: 'protocol version' 1 headers, 0 lines MGCP read: 518 10 Unknown or Unsupported Package from 10.0.2.6:2427Verb: '518', Identifier: '10', Endpoint: 'Unknown', Version: 'or Unsupported' 1 headers, 0 lines MGCP read: 510 11 configured protocol version conflict from 10.0.2.6:2427Verb: '510', Identifier: '11', Endpoint: 'configured', Version: 'protocol version' 1 headers, 0 lines MGCP read: 510 12 configured protocol version conflict from 10.0.2.6:2427Verb: '510', Identifier: '12', Endpoint: 'configured', Version: 'protocol version' 1 headers, 0 lines