I tried what you said also but with no luck also
I was just looking at the log again which is below, would that infomation be any better help
13:13:12.593 Call::Terminate [CM503008]: Call(13): Call is terminated
13:13:12.531 Call::RouteFailed [CM503014]: Call(13): Attempt to reach [sip:
[email protected]:5060] failed. Reason: No Answer
13:13:12.531 CallLeg:

nFailure [CM503003]: Call(13): Call to sip:
[email protected]:5060 has failed; Cause: 408 Request Timeout; internal
13:12:40.453 MediaServerReporting::SetRemoteParty [MS210002] C:13.2:Offer provided. Connection(transcoding mode): 60.240.195.234:9002(9003)
13:12:40.203 CallCtrl:

nSelectRouteReq [CM503004]: Call(13): Calling: VoIPline:10000@[Dev:sip:
[email protected]:5060]
13:12:40.171 CallCtrl:

nSelectRouteReq [CM503010]: Making route(s) to [sip:
[email protected]:5060]
13:12:40.171 MediaServerReporting::SetRemoteParty [MS210000] C:13.1:Offer received. RTP connection: 192.168.1.2:42010(42011)
13:12:40.171 CallLeg::setRemoteSdp Remote SDP is set for legC:13.1
13:12:40.171 Extension:

rintEndpointInfo [CM505001]: Ext.551: Device info: Device Identified: [Man: 3CX Ltd.;Mod: 3CX VoIP Client;Rev: 1] Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [3CX Phone v5.1] Transport: [sip:192.168.1.6:5060]
13:12:40.156 CallCtrl:

nIncomingCall [CM503001]: Call(13): Incoming call from Ext.551 to [sip:
[email protected]:5060]
13:12:40.125 CallLeg:

nNewCall [CM500002]: Info on incoming INVITE:
INVITE sip:
[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 192.168.1.2:5070;branch=z9hG4bK-d87543-98677d367a5a9e4a-1--d87543-;rport=5070
Max-Forwards: 70
Contact: [sip:
[email protected]:5070]
To: [sip:
[email protected]:5060]
From: "3CXPhone"[sip:
[email protected]:5060];tag=1e61223c
Call-ID: OWJkYmUwYmNmMjg3MmZlMjNiMGE5YmYxOGViZmJjMmU.
CSeq: 2 INVITE
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, NOTIFY, REFER
Proxy-Authorization: Digest username="551",realm="3CXPhoneSystem",nonce="12852789159:22cf15459de71c978189611d7f31f5b4",uri="sip:
[email protected]:5060",response="6d26577960b09f188a6f501f68679e7e",algorithm=MD5
Supported: replaces
User-Agent: 3CX Phone v5.1
Content-Length: 0
Thanks.