SIP Trunk to pexip

[Jacky Liu]

I am trying to create a SIP trunk to Pexip,which can make the call between 3CX and pexip.

Now,I created SIP trunk to pexip.The 3CX extensions can call the pexip extensions, but pexip extensions can't call the 3CX extensions, prompt 403 forbidden, Below is the package I grabbed with wireshark.

INVITE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP 192.168.x.154:5060;branch=z9hG4bKp73OiDE6G2s9XxrQCu50LAaljFMwPRZg;rport
From: "3811" <sip:[email protected]>;tag=Uklxa0OAFsco4T7M;epid=tThj15NVueb9pPR0
To: <sip:[email protected]>
CSeq: 1521894684 INVITE
Call-ID: 11bafe8f-3a87-47d1-987d-6e19631a30e0
User-Agent: Pexip Infinity Conferencing Platform/18 (42462.0.0)
Supported: categoryList,adhoclist,sdp-anat,replaces
Allow: INVITE,ACK,OPTIONS,CANCEL,BYE,REGISTER,INFO,SUBSCRIBE,NOTIFY,MESSAGE
Max-Forwards: 70
Contact: <sip:[email protected]:5060;transport=udp>
Route: <sip:192.168.x.1:5060;transport=udp;lr>
Content-Type: application/sdp
Content-Length: 4686

v=0
o=- 1557829103 1557829104 IN IP4 192.168.x.154
s=-
c=IN IP4 192.168.x.154
b=AS:1800
t=0 0
m=audio 48074 RTP/AVP 98 96 99 101 102 103 104 105 106 107 108 109 110 111 9 18 0 8 124 112
c=IN IP4 192.168.11.154
a=rtpmap:98 MP4A-LATM/90000
a=fmtp:98 bitrate=128000;profile-level-id=25;object=23
a=rtpmap:96 MP4A-LATM/90000
a=fmtp:96 bitrate=64000;profile-level-id=24;object=23
a=rtpmap:99 opus/48000/2
a=fmtp:99 useinbandfec=1
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=rtpmap:102 SIREN14/16000
a=fmtp:102 bitrate=48000
a=rtpmap:103 SIREN14/16000
a=fmtp:103 bitrate=32000
a=rtpmap:104 SIREN14/16000
a=fmtp:104 bitrate=24000
a=rtpmap:105 G7221/32000
a=fmtp:105 bitrate=48000
a=rtpmap:106 G7221/32000
a=fmtp:106 bitrate=32000
a=rtpmap:107 G7221/32000




SIP/2.0 403 Forbidden
Via: SIP/2.0/UDP 192.168.x.154:5060;branch=z9hG4bKp73OiDE6G2s9XxrQCu50LAaljFMwPRZg;rport=5060
To: <sip:[email protected]>;tag=bc92f068
From: "3811" <sip:[email protected]>;tag=Uklxa0OAFsco4T7M;epid=tThj15NVueb9pPR0
Call-ID: 11bafe8f-3a87-47d1-987d-6e19631a30e0
CSeq: 1521894684 INVITE
User-Agent: 3CXPhoneSystem 16.0.1.269 (269)
Warning: 499 3CX01 "Caller is not identified"
Content-Length: 0



How should I solve this issue?