Skype for business 2019 integration

[jsione]

Hello.

I'm trying to connect 3CX and S4BS 2019.

Incoming calls from main SIP provider works, but outgoing calls from skype to external numbers dont work.

3CX IP 10.10.11.7
S4BS IP 10.10.11.13
+2222 -- number of sip profile in skype

Here the example of this calls:

15.11.2019 17:12:00 - [CM500002]: Unidentified incoming call. Review INVITE and adjust source identification: Invite-UNK Recv Req INVITE from 10.10.11.13:51196 tid=9c10e5b Call-ID=b2feb363-bdf6-4521-9122-b160ed7ea833: INVITE sip:[email protected];user=phone SIP/2.0 Via: SIP/2.0/TCP 10.10.11.13:51196;branch=z9hG4bK9c10e5b Max-Forwards: 70 Contact: <sip:skype.pupkin.local:5060;transport=Tcp;maddr=10.10.11.13;ms-opaque=b6a1eb6456df00b3> To: <sip:[email protected];user=phone> From: "Vasya Pupkin"<sip:[email protected];user=phone>;epid=2FDC112181;tag=d8e11357b Call-ID: b2feb363-bdf6-4521-9122-b160ed7ea833 CSeq: 67 INVITE Allow: ACK, CANCEL, BYE, INVITE, PRACK, UPDATE Content-Type: application/sdp Supported: 100rel User-Agent: RTCC/7.0.0.0 MediationServer Privacy: id P-Asserted-Identity: "Vasya Pupkin"<sip:[email protected]> P-Asserted-Identity: <tel:+2222> Content-Length: 336 v=0 o=- 13 1 IN IP4 10.10.11.13 s=session c=IN IP4 10.10.11.13 b=CT:1000 t=0 0 m=audio 56548 RTP/AVP 97 101 13 0 8 c=IN IP4 10.10.11.13 a=rtcp:56549 a=label:Audio a=sendrecv a=rtpmap:97 RED/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-16 a=rtpmap:13 CN/8000 a=rtpmap:0 PCMU/8000 a=rtpmap:8 PCMA/8000 a=ptime:20

I've also changed From: Host part to Skype IP address, but it doesn't helped.

Please help me.

 

[JohnS_3CX]

Hello,

Give us some basic information of what your setup is and how you are connecting the two systems.

It appears 3CX does not recognize the source of the invite and rejects it

 

[jsione]

Hello,

Give us some basic information of what your setup is and how you are connecting the two systems.

It appears 3CX does not recognize the source of the invite and rejects it

Skype for business configured as SIP trunk with IP authentication.
And 3CX also configured as PSTN gateway in S4BS topology builder.

 

[JohnS_3CX]

So firstly you said outgoing calls don't work, but your log shows Unidentified incoming call.

Secondly, if you setup the Skype UAS as trunk on 3CX, you need to check whether the call matched and was sent out.

Finally you need to see what reply 3CX got and establish what type of failure this was.