02:43:50.575 [CM503015]: Call(4): Attempt to reach <sip:[email protected]:5060> failed. Reason: Not Implemented
02:43:50.575 [CM503003]: Call(4): Call to sip:[email protected]:5060 has failed; Cause: 488 Not Acceptable Here; from IP:216.115.20.41:5060
02:43:50.388 [CM503004]: Call(4): Calling: VoIPline:zzzzzzzz@(Ln.10000@vonage)@[Dev:sip:[email protected] :5060]
02:43:50.341 [CM503010]: Making route(s) to <sip:[email protected]:5060>
02:43:44.935 [MS211000] C:4.1: 127.0.0.1:42006 is delivering DTMF using RTP payload (RFC2833). In-Band DTMF tone detection is disabled for this call segment.
02:43:41.545 [CM503007]: Call(4): Device joined: sip:[email protected]:40600;rinstance=e0225f779fe758be
02:43:41.545 [CM503007]: Call(4): Device joined: sip:[email protected]:5070;rinstance=8f581e1079feac3a
02:43:41.545 [CM505001]: Ext.800: Device info: Device Identified: [Man: 3CX Ltd.;Mod: 3CX IVR;Rev: General] Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [3CX IVR] Transport: [sip:127.0.0.1:5060]
02:43:41.529 [CM503002]: Call(4): Alerting sip:[email protected]:40600;rinstance=e0225f779fe758be
02:43:41.076 [CM503004]: Call(4): Calling: Ext:Ext.800@[Dev:sip:[email protected]:40600;rinstance=e0225f779fe758be]
02:43:41.076 [CM503010]: Making route(s) to <sip:[email protected]:5060>
02:43:41.076 [CM505001]: Ext.101: Device info: Device Identified: [Man: 3CX Ltd.;Mod: 3CX VoIP Client;Rev: General] Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [3CX Phone 7.0.4184.0] Transport: [sip:10.10.10.3:5060]
02:43:41.060 [CM503001]: Call(4): Incoming call from Ext.101 to <sip:[email protected]:5060>
[ArgumentNullException: Value cannot be null.
Parameter name: collection]
Gizmox.WebGUI.Server.Content.ProcessRequest(HttpContext objHttpContext) +1545
[HttpException (0x80004005): Value cannot be null.
Parameter name: collection]
Gizmox.WebGUI.Server.Content.ProcessRequest(HttpContext objHttpContext) +5003
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +181
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75
Founded in 2005, when VoIP was an emerging technology, 3CX has gone on to establish itself as a global leader in business communications.