Error "Unidentified incoming call. Review INVITE and adjust source identification"

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Adon

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Hi,

I have a device which should dial an internal number to just let the phone ring.

So I created an extension for the device (71) where it should login and then call the internal extension 25.

Unfortunately the extension 25 won't ring. In the activity log I can see this:

Code:
----------------------------------------------------------------------------------------------------------------------------
08/29/2019 3:45:22 PM - [CM500002]: Unidentified incoming call. Review INVITE and adjust source identification:
Invite-UNK Recv Req INVITE from 192.168.102.11:5060 tid=fda5daa5b68bb0394121aec9436cba0a [email protected]:
INVITE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP 192.168.102.11:5060;branch=0741172630;rport=5060
Max-Forwards: 70
Contact: "E5z5TqGH8d"<sip:[email protected]:5060;transport=udp>
To: <sip:[email protected]>
From: "Device12345"  <sip:[email protected]>;tag=0428161138
Call-ID: [email protected]
CSeq: 1 INVITE
Content-Type: application/sdp
Content-Length: 0
----------------------------------------------------------------------------------------------------------------------------

Does somebody know why this isn't working and what I have to set or change in 3CX to make this work?

Any help would be greatly appreciated.

Adon
 
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