[CM500002]: Unidentified incoming call. Review INVITE and adjust source identification

[Oxar]

Hi,

I am new to the 3CX community and hoping you can help me out.
The following error message has many hits on this forum but so far non of the solutions are working for me.

03/09/2020 6:51:11 PM - [CM500002]: Unidentified incoming call. Review INVITE and adjust source identification: Invite-UNK Recv Req INVITE from xxx.xxx.xxx.xxx:5062 tid=PjLghyvspBc8Qg2hmG0hPUEBvE0nHuvPpF Call-ID=vrfDCeVB5zXVt7ZytDRloF8Mm3cLhjar: INVITE sip:[email protected] SIP/2.0 Via: SIP/2.0/UDP xxx.xxx.xxx.xxx:5062;rport=5062;branch=z9hG4bKPjLghyvspBc8Qg2hmG0hPUEBvE0nHuvPpF Max-Forwards: 70 Contact: <sip:[email protected]:5062;ob> To: sip:[email protected] From: sip:[email protected];tag=FcKHa6ad13eFAmg5QgUkKNF.FwLPKCfv Call-ID: vrfDCeVB5zXVt7ZytDRloF8Mm3cLhjar CSeq: 21649 INVITE Session-Expires: 1800 Min-SE: 90 Allow: PRACK, INVITE, ACK, BYE, CANCEL, UPDATE, INFO, SUBSCRIBE, NOTIFY, REFER, MESSAGE, OPTIONS Content-Type: application/sdp Supported: replaces, 100rel, timer, norefersub User-Agent: Pjsua2 Wrapper secHdrA: 8Jjh96gKhO0LmB5QlI2AEMg50all8II secHdrB: BFCDDFE89686B9C734C7C8673EAB3D7A Content-Length: 474 v=0 o=- 3792765071 3792765071 IN IP4 77.251.61.XX s=pjmedia b=AS:84 t=0 0 a=X-nat:0 m=audio 4000 RTP/AVP 98 97 8 0 104 3 99 9 96 c=IN IP4 77.251.61.XX b=TIAS:64000 a=rtcp:4001 IN IP4 192.168.1.196 a=sendrecv a=rtpmap:98 speex/16000 a=rtpmap:97 speex/8000 a=rtpmap:8 PCMA/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:104 iLBC/8000 a=fmtp:104 mode=30 a=rtpmap:3 GSM/8000 a=rtpmap:99 speex/32000 a=rtpmap:9 G722/8000 a=rtpmap:96 telephone-event/8000 a=fmtp:96 0-16

Some details:

• 3CX is running the latest version.
• SIP trunk is a Asterisk server.
• Incoming and outgoing calls are working fine on other phones.
• The device causing this error is a IP Intercom.
• The intercom client gets a 407 error (Proxy Authentication required)
• Tried: https://www.3cx.com/docs/source-identification-issues/
• Tried: https://www.3cx.com/community/threads/review-invite-source.8644/

 

[Oxar]

Hi @Oxar

It's not clear that you ever got the device to even register.

Did you manage to see a registration?

Hi John, Yes the intercom is registering in 3CX.

 

[JohnS_3CX]

Ok when you call it's extension directly it can answer the call and run for 32 seconds at least?

 

[Oxar]

Ok when you call it's extension directly it can answer the call and run for 32 seconds at least?

I can call it but the intercom won't answer because it can't.

04/03/2020 9:51:01 AM - [CM503003]: Call(C:17): Call to <sip:[email protected]:0> has failed; Cause: 408 Request Timeout/INVITE from local

 

[JohnS_3CX]

Then make a call from the intercom to an extension, and lets ensure a call can be set up and established first. You can probably program its button to quickdial an extension

 

[Oxar]

Then make a call from the intercom to an extension, and lets ensure a call can be set up and established first. You can probably program its button to quickdial an extension

That is also not possible. is is a hardware intercom that wants to use users Smarthome and VoIP server to setup a call.

Step 1: A person presses the doorbell
Step 2: The home owner gets a notification an can view the person via a video connection.
Step 3: The home owner can now click on a Call button to setup a audio conversation.

At this point the intercom (extension 601 in this case) want to call the smartphone of the home owner or vice versa using the VoIP server.

This is my best quest of what should happen. When using a free service (iptel.org for instance), it works but we don't what this.

 

[JohnS_3CX]

Instead of a smartphone number, can you enter an extension number? Provided it uses the voip service of the PBX it should be doable. Again, because this is not supported hardware, I cannot say whether you can eventually get it to do what you want, but you can give it a shot.

 

[Oxar]

Instead of a smartphone number, can you enter an extension number? Provided it uses the voip service of the PBX it should be doable. Again, because this is not supported hardware, I cannot say whether you can eventually get it to do what you want, but you can give it a shot.

The smartphone uses a default not changeable username "[email protected]". This user wants to call the [email protected] but then we get the "408 Request Timeout/INVITE from local" error.

 

[JohnS_3CX]

I'm not sure that what you want can even be done. The point being: you may get it to register, but calls may not be achievable in the way it wants to make them.

To make any calls using the 3CX system, you need to have two extensions BOTH registered on the system so they can call each other, or have at least one extension registered to make an external call in this order:

Device->PBX->Trunk Provider->Destination External number.

The calls will have to pass through the system SIP server either way. Again, since I don't know the device, I can't say its impossible but you may have to reach the manufacturer directly and follow their instructions to get it to run using a SIP server. You may also have to manage your own domain records to make it possible, depending on what their requirements are for Direct SIP.

To take things back to basics: Why does the device need a PBX? What does it want to achieve via the PBX that can't be done otherwise? If it wants to do something that does not need a PBX in the middle then you can skip the PBX altogether and register to your trunk provider directly.

Hope this helps and that I haven't confused you!