Track-Calls does not work with mod_callcenter
Peiffer Eric
eric.peiffer at al-enterprise.com
Thu Jan 5 13:20:55 UTC 2023
Hi,
I'am using freeswitch in order to build a call center using the mod_callcenter module. I would use the track-calls capability in order to recover calls that are in the call center queue.
I have read the following documentation about HA:
https://developer.signalwire.com/freeswitch/FreeSWITCH-Explained/Configuration/High-Availability/#about
For now I want just recover the active calls from my unique freeswitch instance after a crash, no cluster, no redundancy, juste one instance of freeswitch plus a opensips proxy.
I have put <param name="track-calls" value="true"/> in my profile I use only one profile all UAC are external and are not register to the freeswitch.
I use the freeswitch local DB since I have only one freeswitch instance.
I have also put <X-PRE-PROCESS cmd="set" data="api_on_startup=fsctl recover"/> in the vars.xml in order to recover call when freeswitch restart..
My topologiy is the follow:
external UAC (client) ===> own SIP server ===> OPENSIPS(10.10.13.196) ===>FREESWITCH (10.10.13.1249) ===> own SIP server ==> external UAC (agents)
Opensips receives INVITE from de UAC client and proxies the INVITE to FREESWITCH freeswitch execute dialplan and the callcenter application and when it find a UAC agents Available it send them an INVITE.
UAC client and agents are localized behind our own SIP server
For the test I have put all external UAC agents associated to my queue in the status 'Logged Out" in order that the incoming call stay inside the queue.
When the UAC client call the queue, I have one calls active.
Then in the fs_cli I execute "fsctl crash". After 1 or 2 second the call is active again in the queue, but some secondes later the call hangup.
When I see the SIP traces I see that when freeswitch recover the call it send a re-INVITE. To the UAC client. The freeswitch receives well a 100 Trying and a SIP 200 OK but when freeswitch send the ACK, the ACK is not handle by the UAC client and UAC client send a SIP 200 OK until timeout and UAC client send a BYE.
My questions are:
* Is it normal to find record-route headers in the re-INVITE? because the re-INVITE is part of the initial dialog. Why freeswitch adds these record-route headers and does not only use Route headers?.
* I think since record-route headers are added to the re-INVITE can this lead to a bad 200 OK and a bad ACK?
Here is the entire SIP dialog view from the freeswitch instance:
I added in front of the important part of the logs some comments prefixed by ///
///
/// UAC client send INVITE to the opensips (private IP:10.10.13.196, public IP: 92.222.241.128) and proxies the INVITE to freeswitch (10.10.13.249)
/// the UAC client is behind our own SIP server (35.234.91.59)
/// opensips use a public IP (public IP: 92.222.241.128) in order to be seen by our SIP server
2023/01/05 13:30:18.413641 10.10.13.196:5080 -> 10.10.13.249:5080
INVITE sip:CCQ_5902 at 92.222.241.128:5080 SIP/2.0
Record-Route: <sip:10.10.13.196:5080;lr;ftag=203AF49B-63B6C2DA0005725D-43210700;fi=sip:10.10.13.249:5080>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;leg_b=1;did=2c7.d4e2;ice_caller=strip;ice_callee=strip;aset=50;rtpprx=yes>
Via: SIP/2.0/UDP 10.10.13.196:5080;branch=z9hG4bK51eb.2ad9e466.0
Via: SIP/2.0/UDP 35.234.91.59:5060;branch=z9hG4bK51eb.fc8febb079a92b66c308656e68c15d42.0
Via: SIP/2.0/UDP 127.0.0.1:5062;rport=5062;branch=z9hG4bK51eb.bc7e781560623ac4c6a9e422632493fc.0
Via: SIP/2.0/UDP 127.0.0.1:5080;received=127.0.0.1;branch=z9hG4bK1KPTAarX;rport=5080
From: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
To: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>
CSeq: 2350 INVITE
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
Max-Forwards: 68
Allow: INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, MESSAGE, OPTIONS, INFO, SUBSCRIBE
P-Asserted-Identity: "3 EPE" <sip:86003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>
Content-Type: application/sdp
Content-Length: 1499
Contact: <sip:ngcp-lb at 35.234.91.59:5060;ngcpct=7369703a3132372e302e302e313a35303830>
v=0
o=Z 0 20027858 IN IP4 35.234.91.59
s=Z
c=IN IP4 35.234.91.59
t=0 0
m=audio 38074 RTP/SAVP 106 9 98 101 0 8 3
a=rtpmap:106 opus/48000/2
a=fmtp:106 sprop-maxcapturerate=16000; minptime=20; useinbandfec=1
a=rtpmap:9 G722/8000
a=rtpmap:98 telephone-event/48000
a=fmtp:98 0-16
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-16
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:3 GSM/8000
a=sendrecv
a=rtcp:38075
a=crypto:1 AEAD_AES_256_GCM inline:OFILTuoRM3nb42N6UG33++GcnZTqMtfR95OnVkZkmJ4HqfgU3JSit/umv8c=
a=crypto:2 AEAD_AES_128_GCM inline:1kuG1uQHOBZ5Ix42+/8rmv1b21xIED92g6rSyw==
a=crypto:3 AES_256_CM_HMAC_SHA1_80 inline:v6L1WbmT5Rrg3gCQNUXMkJX4WjJlYUJ0372DTvdqpxz7xrJcyx59c0OGvhDiSg==
a=crypto:4 AES_256_CM_HMAC_SHA1_32 inline:4i3t6gFfOkqpDiGzlHvBndWg3u+IQgliuJZ/N8o8a6LK4guzdHOkIOlJXFZucQ==
a=crypto:5 AES_192_CM_HMAC_SHA1_80 inline:zccBXkcSKZSX/QRM2wt202SVRyWz5gSMKnyH8QDV9mDMYGr0M7g=
a=crypto:6 AES_192_CM_HMAC_SHA1_32 inline:7hSatSPGua56IAfXm4eXx0djOiufjfi1JXEIlEEjOqiMjMX32+I=
a=crypto:7 AES_CM_128_HMAC_SHA1_80 inline:EN+MWnfnkXOLOYlpBZkKnehi9FFQA5JPKtOGVHzS
a=crypto:8 AES_CM_128_HMAC_SHA1_32 inline:y3UDhaixBo5KUJxty6QHFxQ2vdO9qA3C8HrXmWYb
a=crypto:9 F8_128_HMAC_SHA1_80 inline:Llk+HqvCnwKDSUBPXsWTPUT52UYQ9Dl224AStvPa
a=crypto:10 F8_128_HMAC_SHA1_32 inline:bRgi6ltJPUCgGnHNEXaBVxBQw/FNmKOlr1s7vUDc
a=crypto:11 NULL_HMAC_SHA1_80 inline:694bBAilUw5DmQnT/uan4gxZzF5kC47WyAopEBDg
a=crypto:12 NULL_HMAC_SHA1_32 inline:CyYDCJQgAddlWX6FTKbDrOUR5SJNQ1whwdC9URWC
2023/01/05 13:30:18.414899 10.10.13.249:5080 -> 10.10.13.196:5080
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 10.10.13.196:5080;branch=z9hG4bK51eb.2ad9e466.0
From: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
To: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 2350 INVITE
User-Agent: FreeSWITCH-mod_sofia/1.10.7-release-19-883d2cb662~64bit
Content-Length: 0
2023/01/05 13:30:18.434120 10.10.13.249:5080 -> 10.10.13.196:5080
SIP/2.0 183 Session Progress
Via: SIP/2.0/UDP 10.10.13.196:5080;branch=z9hG4bK51eb.2ad9e466.0
Via: SIP/2.0/UDP 35.234.91.59:5060;branch=z9hG4bK51eb.fc8febb079a92b66c308656e68c15d42.0
Via: SIP/2.0/UDP 127.0.0.1:5062;rport=5062;branch=z9hG4bK51eb.bc7e781560623ac4c6a9e422632493fc.0
Via: SIP/2.0/UDP 127.0.0.1:5080;received=127.0.0.1;branch=z9hG4bK1KPTAarX;rport=5080
Record-Route: <sip:10.10.13.196:5080;lr;ftag=203AF49B-63B6C2DA0005725D-43210700;fi=sip:10.10.13.249:5080>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;leg_b=1;did=2c7.d4e2;ice_caller=strip;ice_callee=strip;aset=50;rtpprx=yes>
From: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
To: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 2350 INVITE
Contact: <sip:CCQ_5902 at 10.10.13.249:5080;transport=udp>
User-Agent: FreeSWITCH-mod_sofia/1.10.7-release-19-883d2cb662~64bit
Accept: application/sdp
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Supported: timer, path, replaces
Allow-Events: talk, hold, conference, refer
Content-Type: application/sdp
Content-Disposition: session
Content-Length: 397
P-Asserted-Identity: "CCQ_5902" <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>
v=0
o=FreeSWITCH 1672878178 1672878179 IN IP4 10.10.13.249
s=FreeSWITCH
c=IN IP4 10.10.13.249
t=0 0
m=audio 43640 RTP/SAVP 106 98
a=rtpmap:106 opus/48000/2
a=fmtp:106 useinbandfec=1; minptime=20
a=rtpmap:98 telephone-event/48000
a=fmtp:98 0-15
a=ptime:20
a=rtcp:43641 IN IP4 10.10.13.249
a=crypto:1 AEAD_AES_256_GCM inline:fk12ZjIzuYJzEgMwtYzZXhceZ5JYVFkyQypWxDycA9R7odmS83LPJd92nxU=
2023/01/05 13:30:18.434401 10.10.13.249:5080 -> 10.10.13.196:5080
SIP/2.0 200 OK
Via: SIP/2.0/UDP 10.10.13.196:5080;branch=z9hG4bK51eb.2ad9e466.0
Via: SIP/2.0/UDP 35.234.91.59:5060;branch=z9hG4bK51eb.fc8febb079a92b66c308656e68c15d42.0
Via: SIP/2.0/UDP 127.0.0.1:5062;rport=5062;branch=z9hG4bK51eb.bc7e781560623ac4c6a9e422632493fc.0
Via: SIP/2.0/UDP 127.0.0.1:5080;received=127.0.0.1;branch=z9hG4bK1KPTAarX;rport=5080
Record-Route: <sip:10.10.13.196:5080;lr;ftag=203AF49B-63B6C2DA0005725D-43210700;fi=sip:10.10.13.249:5080>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;leg_b=1;did=2c7.d4e2;ice_caller=strip;ice_callee=strip;aset=50;rtpprx=yes>
From: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
To: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 2350 INVITE
Contact: <sip:CCQ_5902 at 10.10.13.249:5080;transport=udp>
User-Agent: FreeSWITCH-mod_sofia/1.10.7-release-19-883d2cb662~64bit
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Supported: timer, path, replaces
Allow-Events: talk, hold, conference, refer
Content-Type: application/sdp
Content-Disposition: session
Content-Length: 397
P-Asserted-Identity: "CCQ_5902" <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>
v=0
o=FreeSWITCH 1672878178 1672878179 IN IP4 10.10.13.249
s=FreeSWITCH
c=IN IP4 10.10.13.249
t=0 0
m=audio 43640 RTP/SAVP 106 98
a=rtpmap:106 opus/48000/2
a=fmtp:106 useinbandfec=1; minptime=20
a=rtpmap:98 telephone-event/48000
a=fmtp:98 0-15
a=ptime:20
a=rtcp:43641 IN IP4 10.10.13.249
a=crypto:1 AEAD_AES_256_GCM inline:fk12ZjIzuYJzEgMwtYzZXhceZ5JYVFkyQypWxDycA9R7odmS83LPJd92nxU=
2023/01/05 13:30:18.860093 10.10.13.196:5080 -> 10.10.13.249:5080
ACK sip:CCQ_5902 at 10.10.13.249:5080;transport=udp SIP/2.0
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Via: SIP/2.0/UDP 10.10.13.196:5080;branch=z9hG4bK51eb.2ad9e466.2
Via: SIP/2.0/UDP 35.234.91.59:5060;branch=z9hG4bK51eb.b0c0304bb6c1057cb6b2c6d7134fb7f3.0
Via: SIP/2.0/UDP 127.0.0.1:5062;rport=5062;branch=z9hG4bK51eb.a1369a32282792c8986e2e811f8f1d3e.0
Via: SIP/2.0/UDP 127.0.0.1:5080;received=127.0.0.1;branch=z9hG4bKraVU.aGw;rport=5080
From: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
To: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
CSeq: 2350 ACK
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
Route: <sip:10.10.13.196:5080;lr;ftag=203AF49B-63B6C2DA0005725D-43210700;fi=sip:10.10.13.249:5080>
Max-Forwards: 67
Content-Length: 0
Contact: <sip:ngcp-lb at 35.234.91.59:5060;ngcpct=7369703a3132372e302e302e313a35303830>
///
/// At this point call is active and I execute the fsctl crash command, when freeswitch restart the re-INVITE is send to the UAC client with record-route headers
///
2023/01/05 13:30:28.520853 10.10.13.249:5080 -> 35.234.91.59:5060
INVITE sip:ngcp-lb at 35.234.91.59:5060;ngcpct=7369703a3132372e302e302e313a35303830 SIP/2.0
Via: SIP/2.0/UDP 10.10.13.249:5080;rport;branch=z9hG4bK8rSXcXQK7Fm7F
Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Max-Forwards: 68
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 INVITE
Contact: <sip:ngcp-lb at 10.10.13.249:5080>
User-Agent: FreeSWITCH-mod_sofia/1.10.7-release-19-883d2cb662~64bit
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Supported: timer, path, replaces
Allow-Events: talk, hold, conference, refer
Privacy: none
Content-Type: application/sdp
Content-Disposition: session
Content-Length: 359
X-CALLER-INFO: "3 EPE" <sip:86003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>
X-FS-Support: update_display,send_info
P-Asserted-Identity: "CCQ_5902" <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>
v=0
o=FreeSWITCH 1672878188 1672878190 IN IP4 10.10.13.249
s=FreeSWITCH
c=IN IP4 10.10.13.249
t=0 0
m=audio 43640 RTP/SAVP 106 98
a=rtpmap:106 opus/48000/2
a=fmtp:106 useinbandfec=1; minptime=20
a=rtpmap:98 telephone-event/0
a=fmtp:98 0-15
a=ptime:20
a=crypto:1 AEAD_AES_256_GCM inline:fk12ZjIzuYJzEgMwtYzZXhceZ5JYVFkyQypWxDycA9R7odmS83LPJd92nxU=
2023/01/05 13:30:28.535441 35.234.91.59:5060 -> 10.10.13.249:5080
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 10.10.13.249:5080;rport=5080;branch=z9hG4bK8rSXcXQK7Fm7F;received=135.125.9.10
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 INVITE
Server: Sipwise NGCP LB mr11.1
Content-Length: 0
2023/01/05 13:30:28.736349 35.234.91.59:5060 -> 10.10.13.249:5080
SIP/2.0 200 OK
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;did=2c7.d4e2;rtpprx=yes;ice_caller=strip;ice_callee=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Record-Route: <sip:35.234.91.59;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Via: SIP/2.0/UDP 10.10.13.249:5080;received=135.125.9.10;rport=5080;branch=z9hG4bK8rSXcXQK7Fm7F
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 INVITE
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Content-Type: application/sdp
Content-Length: 333
Contact: <sip:ngcp-lb at 35.234.91.59:5080;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31>
v=0
o=Z 0 20027859 IN IP4 35.234.91.59
s=Z
c=IN IP4 35.234.91.59
t=0 0
m=audio 38074 RTP/SAVP 106
a=rtpmap:106 opus/48000/2
a=fmtp:106 sprop-maxcapturerate=16000; minptime=20; useinbandfec=1
a=sendrecv
a=rtcp:38075
a=crypto:1 AEAD_AES_256_GCM inline:OFILTuoRM3nb42N6UG33++GcnZTqMtfR95OnVkZkmJ4HqfgU3JSit/umv8c
a=ptime:20
///
/// ACK is send but is not handle by the UAC client or our SIP server
///
2023/01/05 13:30:29.620347 10.10.13.249:5080 -> 35.234.91.59:5060
ACK sip:ngcp-lb at 35.234.91.59:5080;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31 SIP/2.0
Via: SIP/2.0/UDP 10.10.13.249:5080;rport;branch=z9hG4bK91jper8p4ratB
Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Route: <sip:35.234.91.59;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;did=2c7.d4e2;rtpprx=yes;ice_caller=strip;ice_callee=strip;aset=50>
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Max-Forwards: 70
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 ACK
Contact: <sip:ngcp-lb at 10.10.13.249:5080>
Content-Length: 0
///
///200 OK is re-send by UAC client or our SIP server
///
2023/01/05 13:30:30.728977 35.234.91.59:5060 -> 10.10.13.249:5080
SIP/2.0 200 OK
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;did=2c7.d4e2;rtpprx=yes;ice_caller=strip;ice_callee=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Record-Route: <sip:35.234.91.59;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Via: SIP/2.0/UDP 10.10.13.249:5080;received=135.125.9.10;rport=5080;branch=z9hG4bK8rSXcXQK7Fm7F
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 INVITE
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Content-Type: application/sdp
Content-Length: 333
Contact: <sip:ngcp-lb at 35.234.91.59:5080;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31>
v=0
o=Z 0 20027859 IN IP4 35.234.91.59
s=Z
c=IN IP4 35.234.91.59
t=0 0
m=audio 38074 RTP/SAVP 106
a=rtpmap:106 opus/48000/2
a=fmtp:106 sprop-maxcapturerate=16000; minptime=20; useinbandfec=1
a=sendrecv
a=rtcp:38075
a=crypto:1 AEAD_AES_256_GCM inline:OFILTuoRM3nb42N6UG33++GcnZTqMtfR95OnVkZkmJ4HqfgU3JSit/umv8c
a=ptime:20
2023/01/05 13:30:30.729158 10.10.13.249:5080 -> 35.234.91.59:5060
ACK sip:ngcp-lb at 35.234.91.59:5080;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31 SIP/2.0
Via: SIP/2.0/UDP 10.10.13.249:5080;rport;branch=z9hG4bK91jper8p4ratB
Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Route: <sip:35.234.91.59;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;did=2c7.d4e2;rtpprx=yes;ice_caller=strip;ice_callee=strip;aset=50>
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Max-Forwards: 70
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 ACK
Contact: <sip:ngcp-lb at 10.10.13.249:5080>
Content-Length: 0
2023/01/05 13:30:34.721091 35.234.91.59:5060 -> 10.10.13.249:5080
SIP/2.0 200 OK
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;did=2c7.d4e2;rtpprx=yes;ice_caller=strip;ice_callee=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Record-Route: <sip:35.234.91.59;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Via: SIP/2.0/UDP 10.10.13.249:5080;received=135.125.9.10;rport=5080;branch=z9hG4bK8rSXcXQK7Fm7F
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 INVITE
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Content-Type: application/sdp
Content-Length: 393
Contact: <sip:ngcp-lb at 35.234.91.59:5080;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31>
v=0
o=Z 0 20027859 IN IP4 35.234.91.59
s=Z
c=IN IP4 35.234.91.59
t=0 0
m=audio 38042 RTP/SAVP 106 0 8
a=rtpmap:106 opus/48000/2
a=fmtp:106 sprop-maxcapturerate=16000; minptime=20; useinbandfec=1
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtcp:38042
a=rtcp-mux
a=ptime:20
a=crypto:1 AEAD_AES_256_GCM inline:OFILTuoRM3nb42N6UG33++GcnZTqMtfR95OnVkZkmJ4HqfgU3JSit/umv8c
2023/01/05 13:30:34.721220 10.10.13.249:5080 -> 35.234.91.59:5060
ACK sip:ngcp-lb at 35.234.91.59:5080;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31 SIP/2.0
Via: SIP/2.0/UDP 10.10.13.249:5080;rport;branch=z9hG4bK91jper8p4ratB
Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Route: <sip:35.234.91.59;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;did=2c7.d4e2;rtpprx=yes;ice_caller=strip;ice_callee=strip;aset=50>
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Max-Forwards: 70
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 ACK
Contact: <sip:ngcp-lb at 10.10.13.249:5080>
Content-Length: 0
2023/01/05 13:30:38.721320 35.234.91.59:5060 -> 10.10.13.249:5080
SIP/2.0 200 OK
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;did=2c7.d4e2;rtpprx=yes;ice_caller=strip;ice_callee=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Record-Route: <sip:35.234.91.59;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Via: SIP/2.0/UDP 10.10.13.249:5080;received=135.125.9.10;rport=5080;branch=z9hG4bK8rSXcXQK7Fm7F
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 INVITE
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Content-Type: application/sdp
Content-Length: 393
Contact: <sip:ngcp-lb at 35.234.91.59:5080;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31>
v=0
o=Z 0 20027859 IN IP4 35.234.91.59
s=Z
c=IN IP4 35.234.91.59
t=0 0
m=audio 38042 RTP/SAVP 106 0 8
a=rtpmap:106 opus/48000/2
a=fmtp:106 sprop-maxcapturerate=16000; minptime=20; useinbandfec=1
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtcp:38042
a=rtcp-mux
a=ptime:20
a=crypto:1 AEAD_AES_256_GCM inline:OFILTuoRM3nb42N6UG33++GcnZTqMtfR95OnVkZkmJ4HqfgU3JSit/umv8c
2023/01/05 13:30:38.721420 10.10.13.249:5080 -> 35.234.91.59:5060
ACK sip:ngcp-lb at 35.234.91.59:5080;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31 SIP/2.0
Via: SIP/2.0/UDP 10.10.13.249:5080;rport;branch=z9hG4bK91jper8p4ratB
Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Route: <sip:35.234.91.59;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;did=2c7.d4e2;rtpprx=yes;ice_caller=strip;ice_callee=strip;aset=50>
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Max-Forwards: 70
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 ACK
Contact: <sip:ngcp-lb at 10.10.13.249:5080>
Content-Length: 0
2023/01/05 13:30:42.721318 35.234.91.59:5060 -> 10.10.13.249:5080
SIP/2.0 200 OK
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;did=2c7.d4e2;rtpprx=yes;ice_caller=strip;ice_callee=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Record-Route: <sip:35.234.91.59;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Via: SIP/2.0/UDP 10.10.13.249:5080;received=135.125.9.10;rport=5080;branch=z9hG4bK8rSXcXQK7Fm7F
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 INVITE
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Content-Type: application/sdp
Content-Length: 393
Contact: <sip:ngcp-lb at 35.234.91.59:5080;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31>
v=0
o=Z 0 20027859 IN IP4 35.234.91.59
s=Z
c=IN IP4 35.234.91.59
t=0 0
m=audio 38042 RTP/SAVP 106 0 8
a=rtpmap:106 opus/48000/2
a=fmtp:106 sprop-maxcapturerate=16000; minptime=20; useinbandfec=1
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtcp:38042
a=rtcp-mux
a=ptime:20
a=crypto:1 AEAD_AES_256_GCM inline:OFILTuoRM3nb42N6UG33++GcnZTqMtfR95OnVkZkmJ4HqfgU3JSit/umv8c
2023/01/05 13:30:42.721425 10.10.13.249:5080 -> 35.234.91.59:5060
ACK sip:ngcp-lb at 35.234.91.59:5080;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31 SIP/2.0
Via: SIP/2.0/UDP 10.10.13.249:5080;rport;branch=z9hG4bK91jper8p4ratB
Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Route: <sip:35.234.91.59;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;did=2c7.d4e2;rtpprx=yes;ice_caller=strip;ice_callee=strip;aset=50>
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Max-Forwards: 70
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 ACK
Contact: <sip:ngcp-lb at 10.10.13.249:5080>
Content-Length: 0
2023/01/05 13:30:46.721226 35.234.91.59:5060 -> 10.10.13.249:5080
SIP/2.0 200 OK
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;did=2c7.d4e2;rtpprx=yes;ice_caller=strip;ice_callee=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Record-Route: <sip:35.234.91.59;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Via: SIP/2.0/UDP 10.10.13.249:5080;received=135.125.9.10;rport=5080;branch=z9hG4bK8rSXcXQK7Fm7F
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 INVITE
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Content-Type: application/sdp
Content-Length: 393
Contact: <sip:ngcp-lb at 35.234.91.59:5080;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31>
v=0
o=Z 0 20027859 IN IP4 35.234.91.59
s=Z
c=IN IP4 35.234.91.59
t=0 0
m=audio 38042 RTP/SAVP 106 0 8
a=rtpmap:106 opus/48000/2
a=fmtp:106 sprop-maxcapturerate=16000; minptime=20; useinbandfec=1
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtcp:38042
a=rtcp-mux
a=ptime:20
a=crypto:1 AEAD_AES_256_GCM inline:OFILTuoRM3nb42N6UG33++GcnZTqMtfR95OnVkZkmJ4HqfgU3JSit/umv8c
2023/01/05 13:30:46.721336 10.10.13.249:5080 -> 35.234.91.59:5060
ACK sip:ngcp-lb at 35.234.91.59:5080;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31 SIP/2.0
Via: SIP/2.0/UDP 10.10.13.249:5080;rport;branch=z9hG4bK91jper8p4ratB
Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Route: <sip:35.234.91.59;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;did=2c7.d4e2;rtpprx=yes;ice_caller=strip;ice_callee=strip;aset=50>
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Max-Forwards: 70
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 ACK
Contact: <sip:ngcp-lb at 10.10.13.249:5080>
Content-Length: 0
2023/01/05 13:30:50.720746 35.234.91.59:5060 -> 10.10.13.249:5080
SIP/2.0 200 OK
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;did=2c7.d4e2;rtpprx=yes;ice_caller=strip;ice_callee=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Record-Route: <sip:35.234.91.59;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Via: SIP/2.0/UDP 10.10.13.249:5080;received=135.125.9.10;rport=5080;branch=z9hG4bK8rSXcXQK7Fm7F
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 INVITE
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Content-Type: application/sdp
Content-Length: 393
Contact: <sip:ngcp-lb at 35.234.91.59:5080;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31>
v=0
o=Z 0 20027859 IN IP4 35.234.91.59
s=Z
c=IN IP4 35.234.91.59
t=0 0
m=audio 38042 RTP/SAVP 106 0 8
a=rtpmap:106 opus/48000/2
a=fmtp:106 sprop-maxcapturerate=16000; minptime=20; useinbandfec=1
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtcp:38042
a=rtcp-mux
a=ptime:20
a=crypto:1 AEAD_AES_256_GCM inline:OFILTuoRM3nb42N6UG33++GcnZTqMtfR95OnVkZkmJ4HqfgU3JSit/umv8c
2023/01/05 13:30:50.720860 10.10.13.249:5080 -> 35.234.91.59:5060
ACK sip:ngcp-lb at 35.234.91.59:5080;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31 SIP/2.0
Via: SIP/2.0/UDP 10.10.13.249:5080;rport;branch=z9hG4bK91jper8p4ratB
Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Route: <sip:35.234.91.59;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;did=2c7.d4e2;rtpprx=yes;ice_caller=strip;ice_callee=strip;aset=50>
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Max-Forwards: 70
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 ACK
Contact: <sip:ngcp-lb at 10.10.13.249:5080>
Content-Length: 0
2023/01/05 13:30:54.721085 35.234.91.59:5060 -> 10.10.13.249:5080
SIP/2.0 200 OK
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;did=2c7.d4e2;rtpprx=yes;ice_caller=strip;ice_callee=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Record-Route: <sip:35.234.91.59;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Via: SIP/2.0/UDP 10.10.13.249:5080;received=135.125.9.10;rport=5080;branch=z9hG4bK8rSXcXQK7Fm7F
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 INVITE
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Content-Type: application/sdp
Content-Length: 393
Contact: <sip:ngcp-lb at 35.234.91.59:5080;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31>
v=0
o=Z 0 20027859 IN IP4 35.234.91.59
s=Z
c=IN IP4 35.234.91.59
t=0 0
m=audio 38042 RTP/SAVP 106 0 8
a=rtpmap:106 opus/48000/2
a=fmtp:106 sprop-maxcapturerate=16000; minptime=20; useinbandfec=1
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtcp:38042
a=rtcp-mux
a=ptime:20
a=crypto:1 AEAD_AES_256_GCM inline:OFILTuoRM3nb42N6UG33++GcnZTqMtfR95OnVkZkmJ4HqfgU3JSit/umv8c
2023/01/05 13:30:54.721190 10.10.13.249:5080 -> 35.234.91.59:5060
ACK sip:ngcp-lb at 35.234.91.59:5080;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31 SIP/2.0
Via: SIP/2.0/UDP 10.10.13.249:5080;rport;branch=z9hG4bK91jper8p4ratB
Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Route: <sip:35.234.91.59;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;did=2c7.d4e2;rtpprx=yes;ice_caller=strip;ice_callee=strip;aset=50>
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Max-Forwards: 70
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 ACK
Contact: <sip:ngcp-lb at 10.10.13.249:5080>
Content-Length: 0
2023/01/05 13:30:58.721424 35.234.91.59:5060 -> 10.10.13.249:5080
SIP/2.0 200 OK
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;did=2c7.d4e2;rtpprx=yes;ice_caller=strip;ice_callee=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Record-Route: <sip:35.234.91.59;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Via: SIP/2.0/UDP 10.10.13.249:5080;received=135.125.9.10;rport=5080;branch=z9hG4bK8rSXcXQK7Fm7F
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 INVITE
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Content-Type: application/sdp
Content-Length: 393
Contact: <sip:ngcp-lb at 35.234.91.59:5080;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31>
v=0
o=Z 0 20027859 IN IP4 35.234.91.59
s=Z
c=IN IP4 35.234.91.59
t=0 0
m=audio 38042 RTP/SAVP 106 0 8
a=rtpmap:106 opus/48000/2
a=fmtp:106 sprop-maxcapturerate=16000; minptime=20; useinbandfec=1
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=sendrecv
a=rtcp:38042
a=rtcp-mux
a=ptime:20
a=crypto:1 AEAD_AES_256_GCM inline:OFILTuoRM3nb42N6UG33++GcnZTqMtfR95OnVkZkmJ4HqfgU3JSit/umv8c
2023/01/05 13:30:58.721565 10.10.13.249:5080 -> 35.234.91.59:5060
ACK sip:ngcp-lb at 35.234.91.59:5080;ngcpct=7369703a3132372e302e302e313a353038303b707278726f7574653d31 SIP/2.0
Via: SIP/2.0/UDP 10.10.13.249:5080;rport;branch=z9hG4bK91jper8p4ratB
Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Route: <sip:35.234.91.59;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes;nat=yes;socket=udp:10.156.0.37:5060>
Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;did=2c7.d4e2;rtpprx=yes;ice_caller=strip;ice_callee=strip;aset=50>
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;ice_callee=strip;ice_caller=strip;aset=50>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Max-Forwards: 70
From: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
To: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 61907122 ACK
Contact: <sip:ngcp-lb at 10.10.13.249:5080>
Content-Length: 0
///
///Finally a BYE is sent by the UAC client or our SIP server
///
2023/01/05 13:31:00.771632 35.234.91.59:5060 -> 10.10.13.249:5080
BYE sip:ngcp-lb at 10.10.13.249:5080 SIP/2.0
Record-Route: <sip:35.234.91.59:5060;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:127.0.0.1;r2=on;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;ngcplb=yes>
Record-Route: <sip:127.0.0.1:5062;lr=on;ftag=203AF49B-63B6C2DA0005725D-43210700;rtpprx=yes;evmona=yes;evmonb=yes>
Via: SIP/2.0/UDP 35.234.91.59:5060;branch=z9hG4bK61eb.d83458727d8dbd3425545ccda805946f.0
Via: SIP/2.0/UDP 127.0.0.1:5062;rport=5062;branch=z9hG4bK61eb.a9d48ed61e06def0ff090926607f9526.0
Via: SIP/2.0/UDP 127.0.0.1:5080;received=127.0.0.1;branch=z9hG4bKr7my1aDT;rport=5080
From: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
To: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
CSeq: 2351 BYE
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
Route: <sip:10.10.13.196:5080;lr;ftag=203AF49B-63B6C2DA0005725D-43210700;fi=sip:10.10.13.249:5080>
Max-Forwards: 68
Content-Length: 0
2023/01/05 13:31:00.779158 10.10.13.249:5080 -> 35.234.91.59:5060
SIP/2.0 200 OK
Via: SIP/2.0/UDP 35.234.91.59:5060;branch=z9hG4bK61eb.d83458727d8dbd3425545ccda805946f.0
Via: SIP/2.0/UDP 127.0.0.1:5062;rport=5062;branch=z9hG4bK61eb.a9d48ed61e06def0ff090926607f9526.0
Via: SIP/2.0/UDP 127.0.0.1:5080;received=127.0.0.1;branch=z9hG4bKr7my1aDT;rport=5080
From: <sip:99901100000186003 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=203AF49B-63B6C2DA0005725D-43210700
To: <sip:CCQ_5902 at 5.demo-rainbow-voice.eu1.sip.openrainbow.com>;tag=ZrBcZvBUyaS7m
Call-ID: 7nFTVTl3OeVXpmSA55vqKw.._pbx-1
CSeq: 2351 BYE
User-Agent: FreeSWITCH-mod_sofia/1.10.7-release-19-883d2cb662~64bit
Allow: INVITE, ACK, BYE, CANCEL, OPTIONS, MESSAGE, INFO, UPDATE, REGISTER, REFER, NOTIFY
Supported: timer, path, replaces
Content-Length: 0
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