│INVITE sip:+31123123123@11.11.11.11:5060 SIP/2.0 11.11.11.11 22.22.22.2 33.33.33.33 │Via: SIP/2.0/UDP 22.22.22.2;rport;branch=z9hG4bKSy5g29Xt89jFH ──────────┬───────── ──────────┬───────── ──────────┬───────── │Max-Forwards: 69 18:19:12.433518 │ ─────── INVITE (SDP) ─────> │ │ │From: ;tag=DgN8H12mU691g 18:19:12.435661 │ <─────── 100 Trying ─────── │ │ │To: ;tag=gK0271e3bf 18:19:12.500648 │ │ ─────── INVITE (SDP) ─────> │ │Call-ID: 906158434_38678072@11.11.11.11 18:19:12.530231 │ │ <─────── 100 Trying ─────── │ │CSeq: 11674191 INVITE 18:19:12.546259 │ │ <─────── 180 Ringing ────── │ │Contact: 18:19:12.560859 │ <─────── 180 Ringing ────── │ │ │User-Agent: Fs 18:19:23.867232 │ │ <────── 200 OK (SDP) ────── │ │Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, NOTIFY 18:19:23.868869 │ │ ──────────── ACK ─────────> │ │Supported: path, replaces 18:19:23.883330 │ <────── 200 OK (SDP) ────── │ │ │Content-Type: application/sdp 18:19:23.899205 │ ──────────── ACK ─────────> │ │ │Content-Length: 284 18:19:23.992696 │ ─────── INVITE (SDP) ─────> │ │ │X-Did: 123123123 18:19:23.993317 │ <─────── 100 Trying ─────── │ │ │ 18:19:24.004048 │ │ ─────── INVITE (SDP) ─────> │ │v=0 18:19:24.034259 │ │ <─────── 100 Trying ─────── │ │o=root 0752214072 0752214075 IN IP4 22.22.22.2 18:19:24.093230 │ │ <────── 200 OK (SDP) ────── │ │s=root 18:19:24.095175 │ │ ──────────── ACK ─────────> │ │c=IN IP4 22.22.22.2 18:19:24.096087 │ <────── 200 OK (SDP) ────── │ │ │t=0 0 18:19:24.100520 │ ──────────── ACK ─────────> │ │ │m=image 31024 udptl t38 18:19:27.840286 │ │ <───────── INVITE ───────── │ │a=T38FaxVersion:0 18:19:27.840885 │ │ ──────── 100 Trying ──────> │ │a=T38MaxBitRate:9600 18:19:27.850643 │ <───────── INVITE (showing) │ │ │a=T38FaxRateManagement:transferredTCF 18:19:27.855570 │ ──────── 100 Trying ──────> │ │ │a=T38FaxMaxBuffer:400 18:19:27.962298 │ ────────── 200 OK ────────> │ │ │a=T38FaxMaxDatagram:280 18:19:28.453209 │ ────────── 200 OK ──────>>> │ │ │a=T38FaxUdpEC:t38UDPRedundancy 18:19:29.452675 │ ────────── 200 OK ──────>>> │ │ │ 18:19:31.452671 │ ────────── 200 OK ──────>>> │ │ │ 18:19:35.452907 │ ────────── 200 OK ──────>>> │ │ │ 18:19:37.964179 │ ──────────── BYE ─────────> │ │ │ 18:19:38.462120 │ ──────────── BYE ───────>>> │ │ │ 18:19:39.462019 │ ──────────── BYE ───────>>> │ │ │ 18:19:41.462156 │ ──────────── BYE ───────>>> │ │ │