VoIP/DID Inbound Problem.

[wzaatar]

Hello everyone,

I tried searching this issue in the forums, but didn't get any results. If it's redundant, I apologize and ask you to redirect me to the proper thread.

I have an "interesting" problem with a DID provider:

I have registered an account with a DID (DDI2.net), configured it on 3CX, works great outbound. On inbound, however it works for the first couple minutes and then if I dial my DID number again, it doesn't connect... However, if I dial out another number, then redial the DID back again.. It works for a couple more minutes but then dies back again.

Looks like the DID server needs some 'keepalive' mechanism?!?!

I'd appreciate if anyone can help with this issue.

Thanks,

Wadih

 

[N_G]

Are you using the latest build 3752?

Can you post server status log?

Also are you using a fixed IP? if the IP changes during the time of registration this will not work....

 

[wzaatar]

Hi,

Thanks for the prompt reply. Here goes the status log:

10:44:19.121 FaxCfg::updateContact :[CM504008]: Fax Service: registered as sip:888@3CXPhoneSystem with contact sip:[email protected]:5100;user=phone
10:44:18.810 StunClient:nInitTests :[CM506001]: STUN request to resolve SIP external IPort mapping is sent to STUN server 64.69.76.23:3478 over Transport 172.16.1.2:5060
10:44:16.227 FaxCfg::updateContact :[CM504010]: Fax Service: unregistered contact sip:888:5100;user=phone
10:37:00.340 LineCfg::getInboundTarget :[CM503011]: Inbound office hours' rule for LN:1000 forwards to DN:100
10:37:00.320 Call::Terminate :[CM503008]: Call(13): Call is terminated
10:37:00.300 LineCfg::getInboundTarget :[CM503011]: Inbound office hours' rule for LN:1000 forwards to DN:100
10:36:18.560 CallCtrl:nLegConnected :[CM503007]: Call(13): Device joined: sip:[email protected]:8149
10:36:18.560 LineCfg::getInboundTarget :[CM503011]: Inbound office hours' rule for LN:1000 forwards to DN:100
10:36:18.540 CallCtrl:nLegConnected :[CM503007]: Call(13): Device joined: sip:[email protected]
10:36:10.899 CallCtrl:nSelectRouteReq :[CM503004]: Call(13): Calling: Ext:100@[Dev:sip:[email protected]:8149]
10:36:10.899 Line:rintEndpointInfo :[CM505003]: Provider:[DDI2] Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [Vox Callcontrol] Transport: [sip:172.16.1.2:5060]
10:36:10.899 LineCfg::getInboundTarget :[CM503011]: Inbound office hours' rule for LN:1000 forwards to DN:100
10:36:10.869 CallCtrl:nIncomingCall :[CM503001]: Call(13): Incoming call from 0@(Ln.1000@DDI2) to [sip:100@xxxxxxxxxxxx:5060]
10:36:10.298 LineCfg::getInboundTarget :[CM503011]: Inbound office hours' rule for LN:1000 forwards to DN:100

I have just removed the real sip IP for my machine.
From the above, you can see that I'm running a server on a 172.16.1.0/24 subnet, server is .2 and client is .110 (Server is not fixed IP, but it has a static lease).

Also, I've just downloaded and installed the latest build. Still the same issue.

Thanks again!

Cheers,

W.

 

[wzaatar]

Hi again,

I found the problem. The VoIP provider needs a very short re-registration period to work. I adjusted it to 60 seconds and now it's working perfectly.

I would like to add it to the list of supported providers, if it's ok with you.

Cheers,

Wadih