U 10.10.48.129:5060 -> 10.0.36.178:5060
INVITE sip:+31756xxxxxx@voip.sandboxpocs.nl SIP/2.0.
Via: SIP/2.0/UDP 10.10.48.129:5060;branch=z9hG4bKb7pfva2088agdm0qf7g1.1.
From: "Anonymous"<sip:anonymous@anonymous.invalid>;tag=SDqj77801-127.0.0.1alUtKGp-06001+1+5df90004+11130183.
To: <sip:+31756xxxxxx@voip.sandboxpocs.nl;user=phone>.
CSeq: 596754227 INVITE.
Expires: 180.
Min-SE: 90.
Session-Expires: 1800.
Content-Length: 382.
Request-Disposition: fork, sequential.
Allow: INVITE, BYE, REGISTER, ACK, OPTIONS, CANCEL, SUBSCRIBE, NOTIFY, PRACK, INFO, REFER, UPDATE.
Supported: histinfo, 100rel, timer.
Call-ID: SDqj77801-889102173bc5f169e17c9aee50469a7f-a8b85e3.
P-Asserted-Identity: <sip:+31646xxxxxx@ims.imscore.net;user=phone>.
Privacy: id.
Max-Forwards: 67.
Contact: <sip:anonymous@10.10.48.129:5060;transport=udp>.
Content-Type: application/sdp.
User-Agent: Alcatel-Lucent 5020 MGC-8 8.1.0.16.SP5.4.
.
v=0.
o=- 3606113292 3606113292 IN IP4 10.10.48.129.
s=-.
c=IN IP4 10.10.48.129.
t=0 0.
m=audio 20060 RTP/AVP 8 0 18 4 2 101.
a=rtpmap:8 PCMA/8000.
a=rtpmap:0 PCMU/8000.
a=rtpmap:18 G729/8000.
a=rtpmap:4 G723/8000.
a=rtpmap:2 G726/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=fmtp:18 annexb=no.
a=fmtp:4 annexa=no.
a=fmtp:4 bitrate=6.3.
a=silenceSupp:off - - - -.

#
U 10.0.36.178:5060 -> 10.10.48.129:5060
SIP/2.0 180 Ringing.
Via: SIP/2.0/UDP 10.10.48.129:5060;rport=5060;branch=z9hG4bKb7pfva2088agdm0qf7g1.1.
Record-Route: <sip:10.0.32.40;lr=on;ftag=SDqj77801-127.0.0.1alUtKGp-06001+1+5df90004+11130183;did=674.d441>.
Record-Route: <sip:10.0.36.178;lr=on>.
From: "Anonymous" <sip:anonymous@anonymous.invalid>;tag=SDqj77801-127.0.0.1alUtKGp-06001+1+5df90004+11130183.
Call-ID: SDqj77801-889102173bc5f169e17c9aee50469a7f-a8b85e3.
CSeq: 596754227 INVITE.
Contact: <sip:172.19.162.1;line=pcs-mp4KWiTsxRmtEAM3WGysx7y3xGnoxAxtuAxSuA7KEsktxGZKWgQfZD6smqlf9Gttzjy*;alias=10.0.32.40~5060~1>.
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INFO,NOTIFY.
Supported: timer.
Server: IP Office 9.0.1.0 build 845.
To: <sip:+31756xxxxxx@sip.pocos.nl;user=phone>;tag=1ab0493ac1bfcdac.
Content-Length: 0.
.

#
U 10.0.36.178:5060 -> 10.10.48.129:5060
SIP/2.0 200 OK.
Via: SIP/2.0/UDP 10.10.48.129:5060;rport=5060;branch=z9hG4bKb7pfva2088agdm0qf7g1.1.
Record-Route: <sip:10.0.32.40;lr=on;ftag=SDqj77801-127.0.0.1alUtKGp-06001+1+5df90004+11130183;did=674.d441>.
Record-Route: <sip:10.0.36.178;lr=on>.
From: "Anonymous" <sip:anonymous@anonymous.invalid>;tag=SDqj77801-127.0.0.1alUtKGp-06001+1+5df90004+11130183.
Call-ID: SDqj77801-889102173bc5f169e17c9aee50469a7f-a8b85e3.
CSeq: 596754227 INVITE.
Contact: <sip:172.19.162.1;line=pcs-mp4KWiTsxRmtEAM3WGysx7y3xGnoxAxtuAxSuA7KEsktxGZKWgQfZD6smqlf9Gttzjy*;alias=10.0.32.40~5060~1>.
Allow: INVITE,ACK,CANCEL,OPTIONS,BYE,INFO,NOTIFY.
Supported: timer.
Server: IP Office 9.0.1.0 build 845.
Min-SE: 1800.
Require: timer.
Session-Expires: 1800;refresher=uac.
To: <sip:+31756xxxxxx@sip.pocos.nl;user=phone>;tag=1ab0493ac1bfcdac.
Content-Type: application/sdp.
Content-Length: 226.
.
v=0.
o=UserA 3699862588 4127909143 IN IP4 10.0.36.178.
s=Session SDP.
c=IN IP4 10.0.36.178.
t=0 0.
m=audio 54476 RTP/AVP 8 101.
a=rtpmap:8 PCMA/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=nortpproxy:yes.

#
U 10.10.48.129:5060 -> 10.0.36.178:5060
ACK sip:172.19.162.1;line=pcs-mp4KWiTsxRmtEAM3WGysx7y3xGnoxAxtuAxSuA7KEsktxGZKWgQfZD6smqlf9Gttzjy*;alias=10.0.32.40~5060~1 SIP/2.0.
Via: SIP/2.0/UDP 10.10.48.129:5060;branch=z9hG4bKevpppo302goh4m0q8681.1.
Call-ID: SDqj77801-889102173bc5f169e17c9aee50469a7f-a8b85e3.
From: "Anonymous" <sip:anonymous@anonymous.invalid>;tag=SDqj77801-127.0.0.1alUtKGp-06001+1+5df90004+11130183.
To: <sip:+31756xxxxxx@sip.pocos.nl;user=phone>;tag=1ab0493ac1bfcdac.
CSeq: 596754227 ACK.
Contact: <sip:anonymous@10.10.48.129:5060;transport=udp>.
Content-Length: 0.
Max-Forwards: 67.
User-Agent: Alcatel-Lucent 5020 MGC-8 8.1.0.16.SP5.4.
.

#
U 10.10.48.129:5060 -> 10.0.36.178:5060
INVITE sip:172.19.162.1;line=pcs-mp4KWiTsxRmtEAM3WGysx7y3xGnoxAxtuAxSuA7KEsktxGZKWgQfZD6smqlf9Gttzjy*;alias=10.0.32.40~5060~1 SIP/2.0.
Via: SIP/2.0/UDP 10.10.48.129:5060;branch=z9hG4bKq7m2h6102gbgpmsb52c1.1.
Call-ID: SDqj77801-889102173bc5f169e17c9aee50469a7f-a8b85e3.
From: "Anonymous" <sip:anonymous@anonymous.invalid>;tag=SDqj77801-127.0.0.1alUtKGp-06001+1+5df90004+11130183.
To: <sip:;user=phone>;tag=1ab0493ac1bfcdac.
CSeq: 596754228 INVITE.
Expires: 180.
Contact: <sip:anonymous@10.10.48.129:5060;transport=udp>.
Min-SE: 1800.
Session-Expires: 1800;refresher=uac.
Supported: replaces, 100rel, timer.
Content-Length: 394.
Allow: INVITE, BYE, REGISTER, ACK, OPTIONS, CANCEL, SUBSCRIBE, NOTIFY, PRACK, INFO, REFER, UPDATE.
Max-Forwards: 67.
Content-Type: application/sdp.
User-Agent: Alcatel-Lucent 5020 MGC-8 8.1.0.16.SP5.4.
.
v=0.
o=- 3606113292 3606113293 IN IP4 10.10.48.129.
s=-.
c=IN IP4 10.10.48.129.
t=0 0.
m=audio 20060 RTP/AVP 8 0 18 4 2 101.
a=sendonly.
a=rtpmap:8 PCMA/8000.
a=rtpmap:0 PCMU/8000.
a=rtpmap:18 G729/8000.
a=rtpmap:4 G723/8000.
a=rtpmap:2 G726/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=fmtp:18 annexb=no.
a=fmtp:4 annexa=no.
a=fmtp:4 bitrate=6.3.
a=silenceSupp:off - - - -.

#
U 10.0.36.178:5060 -> 10.10.48.129:5060
SIP/2.0 100 trying -- your call is important to us.
Via: SIP/2.0/UDP 10.10.48.129:5060;branch=z9hG4bKq7m2h6102gbgpmsb52c1.1;rport=5060.
Call-ID: SDqj77801-889102173bc5f169e17c9aee50469a7f-a8b85e3.
From: "Anonymous" <sip:anonymous@anonymous.invalid>;tag=SDqj77801-127.0.0.1alUtKGp-06001+1+5df90004+11130183.
To: <sip:;user=phone>;tag=1ab0493ac1bfcdac.
CSeq: 596754228 INVITE.
Content-Length: 0.
.

#
U 10.10.48.129:5060 -> 10.0.36.178:5060
INVITE sip:172.19.162.1;line=pcs-mp4KWiTsxRmtEAM3WGysx7y3xGnoxAxtuAxSuA7KEsktxGZKWgQfZD6smqlf9Gttzjy*;alias=10.0.32.40~5060~1 SIP/2.0.
Via: SIP/2.0/UDP 10.10.48.129:5060;branch=z9hG4bKq7m2h6102gbgpmsb52c1.1.
Call-ID: SDqj77801-889102173bc5f169e17c9aee50469a7f-a8b85e3.
From: "Anonymous" <sip:anonymous@anonymous.invalid>;tag=SDqj77801-127.0.0.1alUtKGp-06001+1+5df90004+11130183.
To: <sip:;user=phone>;tag=1ab0493ac1bfcdac.
CSeq: 596754228 INVITE.
Expires: 180.
Contact: <sip:anonymous@10.10.48.129:5060;transport=udp>.
Min-SE: 1800.
Session-Expires: 1800;refresher=uac.
Supported: replaces, 100rel, timer.
Content-Length: 394.
Allow: INVITE, BYE, REGISTER, ACK, OPTIONS, CANCEL, SUBSCRIBE, NOTIFY, PRACK, INFO, REFER, UPDATE.
Max-Forwards: 67.
Content-Type: application/sdp.
User-Agent: Alcatel-Lucent 5020 MGC-8 8.1.0.16.SP5.4.
.
v=0.
o=- 3606113292 3606113293 IN IP4 10.10.48.129.
s=-.
c=IN IP4 10.10.48.129.
t=0 0.
m=audio 20060 RTP/AVP 8 0 18 4 2 101.
a=sendonly.
a=rtpmap:8 PCMA/8000.
a=rtpmap:0 PCMU/8000.
a=rtpmap:18 G729/8000.
a=rtpmap:4 G723/8000.
a=rtpmap:2 G726/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=fmtp:18 annexb=no.
a=fmtp:4 annexa=no.
a=fmtp:4 bitrate=6.3.
a=silenceSupp:off - - - -.

#
U 10.0.36.178:5060 -> 10.10.48.129:5060
SIP/2.0 100 trying -- your call is important to us.
Via: SIP/2.0/UDP 10.10.48.129:5060;branch=z9hG4bKq7m2h6102gbgpmsb52c1.1;rport=5060.
Call-ID: SDqj77801-889102173bc5f169e17c9aee50469a7f-a8b85e3.
From: "Anonymous" <sip:anonymous@anonymous.invalid>;tag=SDqj77801-127.0.0.1alUtKGp-06001+1+5df90004+11130183.
To: <sip:;user=phone>;tag=1ab0493ac1bfcdac.
CSeq: 596754228 INVITE.
Content-Length: 0.
.

#
U 10.10.48.129:5060 -> 10.0.36.178:5060
INVITE sip:172.19.162.1;line=pcs-mp4KWiTsxRmtEAM3WGysx7y3xGnoxAxtuAxSuA7KEsktxGZKWgQfZD6smqlf9Gttzjy*;alias=10.0.32.40~5060~1 SIP/2.0.
Via: SIP/2.0/UDP 10.10.48.129:5060;branch=z9hG4bKq7m2h6102gbgpmsb52c1.1.
Call-ID: SDqj77801-889102173bc5f169e17c9aee50469a7f-a8b85e3.
From: "Anonymous" <sip:anonymous@anonymous.invalid>;tag=SDqj77801-127.0.0.1alUtKGp-06001+1+5df90004+11130183.
To: <sip:;user=phone>;tag=1ab0493ac1bfcdac.
CSeq: 596754228 INVITE.
Expires: 180.
Contact: <sip:anonymous@10.10.48.129:5060;transport=udp>.
Min-SE: 1800.
Session-Expires: 1800;refresher=uac.
Supported: replaces, 100rel, timer.
Content-Length: 394.
Allow: INVITE, BYE, REGISTER, ACK, OPTIONS, CANCEL, SUBSCRIBE, NOTIFY, PRACK, INFO, REFER, UPDATE.
Max-Forwards: 67.
Content-Type: application/sdp.
User-Agent: Alcatel-Lucent 5020 MGC-8 8.1.0.16.SP5.4.
.
v=0.
o=- 3606113292 3606113293 IN IP4 10.10.48.129.
s=-.
c=IN IP4 10.10.48.129.
t=0 0.
m=audio 20060 RTP/AVP 8 0 18 4 2 101.
a=sendonly.
a=rtpmap:8 PCMA/8000.
a=rtpmap:0 PCMU/8000.
a=rtpmap:18 G729/8000.
a=rtpmap:4 G723/8000.
a=rtpmap:2 G726/8000.
a=rtpmap:101 telephone-event/8000.
a=fmtp:101 0-15.
a=fmtp:18 annexb=no.
a=fmtp:4 annexa=no.
a=fmtp:4 bitrate=6.3.
a=silenceSupp:off - - - -.

#
U 10.0.36.178:5060 -> 10.10.48.129:5060
SIP/2.0 100 trying -- your call is important to us.
Via: SIP/2.0/UDP 10.10.48.129:5060;branch=z9hG4bKq7m2h6102gbgpmsb52c1.1;rport=5060.
Call-ID: SDqj77801-889102173bc5f169e17c9aee50469a7f-a8b85e3.
From: "Anonymous" <sip:anonymous@anonymous.invalid>;tag=SDqj77801-127.0.0.1alUtKGp-06001+1+5df90004+11130183.
To: <sip:;user=phone>;tag=1ab0493ac1bfcdac.
CSeq: 596754228 INVITE.
Content-Length: 0.
.