i have connected my 3cx to vapi and i am getting this error https://cdn.discordapp.com/attachments/1333423781959700481/1333423782076874814/dump_12.pcap?ex=6798d72b&is=679785ab&hm=2687c551891414de5a1dba0c501a374cd885f173fe70ccf3f884ee512419ca74& https://cdn.discordapp.com/attachments/1333423781959700481/1333423782584516718/image.png?ex=6798d72b&is=679785ab&hm=44f07bc12eaf66e93beaa1173cd0a4649e10a42f9021ef2e7d93d7cc5b9193c9&

@Noel Roby I'm here to help! Could you please provide me with the specific error message you're seeing when you connect your 3CX system to VAPI? This will help me understand the issue better and assist you accordingly.

Unidentified Incoming Call. Review INVITE and adjust source identification: INVITE sip:+971503813478@multitenant-cloud.3cx.ae;transport=udp SIP/2.0 Via: SIP/2.0/UDP 44.229.228.186;rport=5060;branch=z9hG4bK4Dt3Zt54jQpBe Max-Forwards: 70 Contact: To: ;transport=udp From: ;tag=gav219ry5rQFF Call-ID: 12a7a9af-574a-123e-2398-0ab1a00be75b CSeq: 94436022 INVITE Allow: INVITE, ACK, OPTIONS, CANCEL, BYE, NOTIFY, UPDATE, PRACK Content-Type: application/sdp X-Account-Sid: f2146033-1b54-4147-8e0c-42d42536891b X-Call-Sid: cc80c5d9-980d-4493-a8c3-b8b536385346 Content-Length: 484 v=0 o=RTP-Mediaserver 1737947120 1737947121 IN IP4 44.229.228.186 s=RTP-Mediaserver c=IN IP4 44.229.228.186 t=0 0 m=audio 55900 RTP/AVP 0 8 102 9 101 103 a=rtpmap:0 PCMU/8000 a=rtpmap:8 PCMA/8000 a=rtpmap:102 opus/48000/2 a=fmtp:102 useinbandfec=1; maxplaybackrate=48000; maxaveragebitrate=30000; minptime=10 a=rtpmap:9 G722/8000 a=rtpmap:101 telephone-event/8000 a=fmtp:101 0-15 a=rtpmap:103 telephone-event/48000 a=fmtp:103 0-15 a=sendrecv a=rtcp:55901 a=ptime:20

@Noel Roby Upon reviewing your PCAP file, I have noted that your SIP server necessitates authentication. This can be accomplished by adding the gateway, whether it be an IP address or SIP URI, along with the corresponding username and password. If this has already been completed and the authentication credentials are in place, I recommend confirming with your provider, as they may require tunneling. If that is the case, you will need to manage the tunneling on your end.

Hi

Hi @Noel Roby just ping me and I might be able to help

@Noel Roby checking if you got any updates from your telephony for proxy-authentication headers alternative.