memole

Hello everyone, I have this problem I have 3 hotels, I have connected all through the interior 2 ADSL connections The switchboard has a public IP The problem and IVM call and respond, when I ask to transfer the call to a remote internal transfer rather than no effect This is the log 11:38:34 Incoming SIP call 11:38:36 Ringing on Line 196 detected. Waiting until ring number 2. 11:38:36 Memole Inn Sanremo 196 [Answered] 11:38:36 Answering call... 11:38:36 Answered line [7 "*******"] call number [169] cid [389*******] did[196] drn[0 (0ms)] 11:38:36 Play file: C:\Users\riccardo\Documents\File ricevuti\memole.wav 11:38:41 Caller pressed key [1] 11:38:41 Command - Go 11:38:41 Open OGM: memole camere 11:38:41 Play file: C:\Users\riccardo\Documents\File ricevuti\memole-camere.wav 11:38:43 Caller pressed key [7] 11:38:44 Caller pressed key [7] 11:38:45 Caller pressed key [7] 11:38:45 Variable number = 777 11:38:45 Command - Transfer 11:38:45 Voip Blind Transfer To: 777 11:38:45 Play system prompt: Ringing 11:38:45 Transferring sip call to: 777 11:38:45 Call has disconnected 11:38:33 Call sip:389******@62.94.71.98 -> 196 11:38:36 Call sip:389******@62.94.71.98 -> 196 answered 11:38:45 Transfer initiated from sip:196@62.94.243.100:5060. Connecting <sip:3893801380@62.94.71.98> with sip:777@62.94.243.100. 11:38:50 Error returned: 400 Bad request 11:39:03 Call sip:389*****@62.94.71.98:5060 connected 11:39:10 Call 389***** -> 777 disconnected Ok very tanks Riccardo