<--- Received SIP request (402 bytes) from UDP:216.147.0.1:5060 --->
ACK sip:4420xxxxxxxx@(My.Domain.Name):1555 SIP/2.0
Via: SIP/2.0/UDP 216.147.0.1:5060;branch=z9hG4bK51c4.16d69c1bc1b321d17a5176e09ad40077.0
Max-Forwards: 69
From: "44775xxxxxxx" <sip:44775xxxxxxx@sip.nexmo.com>;tag=as2a96c4d6
To: <sip:4420xxxxxxxx@(My.Domain.Name)>;tag=7e92ccc6-b2d0-453b-81f5-c624438329ac
Call-ID: 101af1856a59242e1a02543356f8e938@sip.nexmo.com
CSeq: 102 ACK
Content-Length: 0


<--- Received SIP request (1254 bytes) from UDP:216.147.0.1:5060 --->
INVITE sip:4420xxxxxxxx@(My.Domain.Name):1555 SIP/2.0
Record-Route: <sip:216.147.0.1;lr=on;ftag=as7511b7d7;nat=yes>
Via: SIP/2.0/UDP 216.147.0.1:5060;branch=z9hG4bKbf78.c1a06d069ad8132342f0975e15046929.0
Via: SIP/2.0/UDP 10.228.145.165:5060;received=10.228.145.165;branch=z9hG4bK345f1323;rport=5060
Max-Forwards: 69
From: "44775xxxxxxx" <sip:44775xxxxxxx@sip.nexmo.com>;tag=as7511b7d7
To: <sip:4420xxxxxxxx@(My.Domain.Name):1555>
Contact: <sip:44775xxxxxxx@10.228.145.165:5060;alias=10.228.145.165~5060~1>
Call-ID: 603c606e16aae49e22e9250950389622@sip.nexmo.com
CSeq: 102 INVITE
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, SUBSCRIBE, NOTIFY, INFO, PUBLISH, MESSAGE
Supported: timer
User-Agent: Nexmo Media euw1-145165 prd
Date: Wed, 16 Aug 2023 20:32:52 GMT
P-Asserted-Identity: "44775xxxxxxx" <sip:44775xxxxxxx@sip.nexmo.com>
Content-Type: application/sdp
Content-Length: 362

v=0
o=Nexmo 577021829 577021829 IN IP4 216.147.0.126
s=Nexmo
c=IN IP4 216.147.0.126
t=0 0
m=audio 22896 RTP/AVP 8 0 97 18 9 101
a=rtpmap:8 PCMA/8000
a=rtpmap:0 PCMU/8000
a=rtpmap:97 iLBC/8000
a=fmtp:97 mode=30
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:9 G722/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=ptime:20
a=sendrecv

<--- Transmitting SIP response (537 bytes) to UDP:216.147.0.1:5060 --->
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 216.147.0.1:5060;rport=5060;received=216.147.0.1;branch=z9hG4bKbf78.c1a06d069ad8132342f0975e15046929.0
Via: SIP/2.0/UDP 10.228.145.165:5060;rport=5060;received=10.228.145.165;branch=z9hG4bK345f1323
Record-Route: <sip:216.147.0.1;lr;ftag=as7511b7d7;nat=yes>
Call-ID: 603c606e16aae49e22e9250950389622@sip.nexmo.com
From: "44775xxxxxxx" <sip:44775xxxxxxx@sip.nexmo.com>;tag=as7511b7d7
To: <sip:4420xxxxxxxx@(My.Domain.Name)>
CSeq: 102 INVITE
Server: FPBX-16.0.40.4(18.16.0)
Content-Length:  0


[2023-08-16 20:32:52] ERROR[2083]: res_pjsip_session.c:938 handle_incoming_sdp:  Vonage: Couldn't negotiate stream 0:audio-0:audio:sendrecv (nothing)
<--- Transmitting SIP response (591 bytes) to UDP:216.147.0.1:5060 --->
SIP/2.0 488 Not Acceptable Here
Via: SIP/2.0/UDP 216.147.0.1:5060;rport=5060;received=216.147.0.1;branch=z9hG4bKbf78.c1a06d069ad8132342f0975e15046929.0
Via: SIP/2.0/UDP 10.228.145.165:5060;rport=5060;received=10.228.145.165;branch=z9hG4bK345f1323
Record-Route: <sip:216.147.0.1;lr;ftag=as7511b7d7;nat=yes>
Call-ID: 603c606e16aae49e22e9250950389622@sip.nexmo.com
From: "44775xxxxxxx" <sip:44775xxxxxxx@sip.nexmo.com>;tag=as7511b7d7
To: <sip:4420xxxxxxxx@(My.Domain.Name)>;tag=d8e78fae-36cd-4408-bd6a-271cfb355642
CSeq: 102 INVITE
Server: FPBX-16.0.40.4(18.16.0)
Content-Length:  0


<--- Received SIP request (402 bytes) from UDP:216.147.0.1:5060 --->
ACK sip:4420xxxxxxxx@(My.Domain.Name):1555 SIP/2.0
Via: SIP/2.0/UDP 216.147.0.1:5060;branch=z9hG4bKbf78.c1a06d069ad8132342f0975e15046929.0
Max-Forwards: 69
From: "44775xxxxxxx" <sip:44775xxxxxxx@sip.nexmo.com>;tag=as7511b7d7
To: <sip:4420xxxxxxxx@(My.Domain.Name)>;tag=d8e78fae-36cd-4408-bd6a-271cfb355642
Call-ID: 603c606e16aae49e22e9250950389622@sip.nexmo.com
CSeq: 102 ACK
Content-Length: 0