Forward calls through Voip Providers

[cpinero]

I have setup a virtual extension that when dialed it automatically forwards the call through our Voip Provider to an external number. The problem I am having is that when I dial the extension i get the "Call transfer failed."

Making calls through the Voip Provider works fine. It just does not allow to transfer the call.

The setup is 3CX version 7.0.4249.0 with Grandstream GXW-4104 gateway and SPA922 phones. The call log is as follows:

09:11:50.562 [CM503008]: Call(1): Call is terminated
09:11:50.562 [CM503008]: Call(1): Call is terminated
09:11:46.312 [MS210005] C:1.2:Answer provided. Connection(proxy mode):127.0.0.1:7002(7003)
09:11:46.312 [MS210001] C:1.1:Answer received. RTP connection: 192.168.1.160:5004(5005)
09:11:46.312 Remote SDP is set for legC:1.1
09:11:46.203 [MS210004] C:1.1:Offer provided. Connection(proxy mode): 192.168.1.180:7000(7001)
09:11:46.203 [MS210000] C:1.2:Offer received. RTP connection: 127.0.0.1:40610(40611)
09:11:46.203 Remote SDP is set for legC:1.2
09:11:45.875 [CM503015]: Call(1): Attempt to reach <sip:[email protected]:5060> failed. Reason: Reason Unknown
09:11:45.875 [CM503003]: Call(1): Call to sip:[email protected]:5060 has failed; Cause: 400 Bad request; from IP:194.221.62.198:5060
09:11:45.593 [CM503004]: Call(1): Calling: VoIPline:1xxxxxxxxxx@(Ln.10008@VoipProvider)@[Dev:sip:[email protected]:5060]
09:11:45.406 [CM503010]: Making route(s) to <sip:[email protected]:5060>
09:11:45.406 Refer: from="DR800:"<sip:[email protected]:5060>;tag=ff599a7a; to="WIRELESS CALLER"<sip:[email protected]:5060>;tag=164f7311; RefTo=<sip:[email protected]:5060>
09:11:45.078 [MS210003] C:1.2:Answer provided. Connection(transcoding mode):127.0.0.1:7002(7003)
09:11:45.078 [MS210001] C:1.1:Answer received. RTP connection: 192.168.1.160:5004(5005)
09:11:45.078 Remote SDP is set for legC:1.1
09:11:45.000 [MS210002] C:1.1:Offer provided. Connection(transcoding mode): 192.168.1.180:7000(7001)
09:11:44.984 [MS210000] C:1.2:Offer received. RTP connection: 127.0.0.1:40610(40611)
09:11:44.984 Remote SDP is set for legC:1.2
09:11:37.484 Session 77 of leg C:1.1 is confirmed
09:11:37.421 [CM503007]: Call(1): Device joined: sip:[email protected]:40600;rinstance=a5c7795f3440f6f9
09:11:37.406 [CM503007]: Call(1): Device joined: sip:[email protected]:5064
09:11:37.406 [CM505001]: Ext.800: Device info: Device Identified: [Man: 3CX Ltd.;Mod: 3CX MakeCall helper;Rev: General] Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [3CX MakeCall helper] Transport: [sip:127.0.0.1:5060]
09:11:37.406 [MS210005] C:1.1:Answer provided. Connection(proxy mode):192.168.1.180:7000(7001)
09:11:37.406 [MS210001] C:1.2:Answer received. RTP connection: 127.0.0.1:40610(40611)
09:11:37.406 Remote SDP is set for legC:1.2
09:11:37.390 [CM503002]: Call(1): Alerting sip:[email protected]:40600;rinstance=a5c7795f3440f6f9
09:11:36.828 [MS210004] C:1.2:Offer provided. Connection(proxy mode): 127.0.0.1:7002(7003)
09:11:36.812 [CM503004]: Call(1): Calling: Ext:Ext.800@[Dev:sip:[email protected]:40600;rinstance=a5c7795f3440f6f9]
09:11:36.796 [MS210000] C:1.1:Offer received. RTP connection: 192.168.1.160:5004(5005)
09:11:36.781 [CM503010]: Making route(s) to <sip:[email protected]:5060>
09:11:36.765 Remote SDP is set for legC:1.1
09:11:36.750 [CM505002]: Gateway:[GXW4104 Miami] Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [Grandstream GXW4104 (HW 1.0, Ch:0) 1.0.1.10] Transport: [sip:192.168.1.180:5060]
09:11:36.718 [CM503001]: Call(1): Incoming call from xxxxxxxxxx@(Ln.10002@GXW4104 Miami) to <sip:[email protected]:5060>
09:11:36.484 [CM503012]: Inbound out-of-office hours rule for 10002 forwards to DN:800
09:11:36.468 Looking for inbound target: called=10000+; caller=xxxxxxxxxx
09:11:36.406 [CM500002]: Info on incoming INVITE:
INVITE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP 192.168.1.160:5064;branch=z9hG4bKb1d109c361a01e64
Max-Forwards: 70
Contact: <sip:[email protected]:5064>
To: <sip:[email protected]>
From: "WIRELESS CALLER"<sip:[email protected]>;tag=32d0853055239501
Call-ID: [email protected]
CSeq: 1425 INVITE
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, OPTIONS, INFO, SUBSCRIBE, UPDATE, PRACK
Proxy-Authorization: Digest username="10002",realm="3CXPhoneSystem",algorithm=MD5,uri="sip:[email protected]",nonce="12876070296:35b01f222c4d2cad5d03df2a0a183165",response="7701bbfa890a4d19527199871fb13bd3"
Supported: replaces, timer, path
User-Agent: Grandstream GXW4104 (HW 1.0, Ch:0) 1.0.1.10
Content-Length: 0

Anybody has an idea of why is the call not being forwarded??

Thanks.

 

[discovery1]

Making calls through the Voip Provider works fine. It just does not allow to transfer the call.

How are you testing this? Are you making a call through the VOIP provider using a Grandstream phone?
Have you checked that the VOIP provider is correctly registered in the 3CX status page?

Is the VOIP provider a supported one? If not that is likely to be the problem.