Stefan:

From kamailio sip server's query, both phones are registered through sems sbc, 
as their Callid are both appended by "_leg_sems" that I configured purposedly.

[root@localhost sbin]# ./kamctl ul showDomain:: location table=512 records=2 
max_slot=1        AOR:: 19995                Contact:: 
sip:[email protected];transport=udp Q=                        
Expires:: 3575                        Callid:: 
[email protected]_leg_sems                        
Cseq:: 10                        User-agent:: Polycom Telepresence 
m100/1.0.6.38916_6452                        State:: CS_NEW                     
   Flags:: 0                        Cflag:: 0                        Socket:: 
udp:192.168.130.126:5060                        Methods:: 8159                  
      Ruid:: uloc-54125d9c-4861-1                        Reg-Id:: 0             
           Last-Keepalive:: 1410492842                        Last-Modified:: 
1410492842        AOR:: 18001                Contact:: 
sip:[email protected];transport=udp Q=                        
Expires:: 3566                        Callid:: 3745440c545a3962_leg_sems        
                Cseq:: 10                        User-agent:: eyeBeam release 
3004t stamp 16741                        State:: CS_NEW                        
Flags:: 0                        Cflag:: 0                        Socket:: 
udp:192.168.130.126:5060                        Methods:: 5087                  
      Ruid:: uloc-54125d9c-485e-1                        Reg-Id:: 0             
           Last-Keepalive:: 1410492833                        Last-Modified:: 
1410492833
Here just paste the several lines of logs nearby the 404 error, see attached 
log file for more details.By the way, could tell me how I can see more logs 
nearby the "404" error?
--++-- [#7fbdb4e0a700/859] [update_uas_reply, trans_layer.cpp:2126] DEBUG:  
update_uas_reply(t=0x1142bd0) [#7fbdb4e0a700/859] [replaceParameters, 
ParamReplacer.cpp:774] DEBUG:  callid pattern replace: '$ci_leg_sems' -> 
'fb56c91b5d5fb136_leg_sems' [#7fbdb4e0a700/859] [evaluate, 
SBCCallProfile.cpp:765] DEBUG:  callid = 'fb56c91b5d5fb136_leg_sems' 
[#7fbdb4e0a700/859] [evaluate, SBCCallProfile.cpp:770] DEBUG:  outbound_proxy = 
'sip:192.168.130.126:5060' [#7fbdb4e0a700/859] [evaluate, 
SBCCallProfile.cpp:771] DEBUG:  next_hop = '192.168.130.126:5060' 
[#7fbdb4e0a700/859] [evaluate, SBCCallProfile.cpp:1640] DEBUG:  transcoder is 
disabled [#7fbdb4e0a700/859] [evaluate, SBCCallProfile.cpp:775] DEBUG:  
rtprelay_enabled = 'yes' [#7fbdb4e0a700/859] [evaluate, SBCCallProfile.cpp:779] 
DEBUG:  force_symmetric_rtp = 'yes' [#7fbdb4e0a700/859] [evaluate, 
SBCCallProfile.cpp:780] DEBUG:  aleg_force_symmetric_rtp = 'yes' 
[#7fbdb4e0a700/859] [evaluate, SBCCallProfile.cpp:798] DEBUG:  set 
rtprelay_interface to 'default' [#7fbdb4e0a700/859] [evaluate, 
SBCCallProfile.cpp:799] DEBUG:  set aleg_rtprelay_interface to 'intern' 
[#7fbdb4e0a700/859] [evaluate, SBCCallProfile.cpp:836] DEBUG:  set 
outbound_interface to 'extern' [#7fbdb4e0a700/859] [evaluate, 
SBCCallProfile.cpp:1750] DEBUG:  aleg.activity_str = '' [#7fbdb4e0a700/859] 
[evaluate, SBCCallProfile.cpp:1754] DEBUG:  bleg.activity_str = '' 
[#7fbdb4e0a700/859] [onSipRequest, AmSession.cpp:724] ERROR:  404 User not 
found [#7fbdb4e0a700/859] [reply, AmBasicSipDialog.cpp:583] DEBUG:  reply: 
transaction found! [#7fbdb4e0a700/859] [onReplyOut, AmOfferAnswer.cpp:427] 
DEBUG:  after 404 reply to INVITE: resetting OA state [#7fbdb4e0a700/859] 
[setState, AmOfferAnswer.cpp:69] DEBUG:  setting SIP dialog O/A status: 
OfferRecved->None [#7fbdb4e0a700/859] [setStatus, AmBasicSipDialog.cpp:84] 
DEBUG:  setting SIP dialog status: Early->Disconnected [#7fbdb4e0a700/859] 
[send_reply, trans_layer.cpp:410] DEBUG:  reply_len = 363 [#7fbdb4e0a700/859] 
[is_opt_set, transport.cpp:76] DEBUG:  trsp_socket::socket_options = 0x2 
[#7fbdb4e0a700/859] [is_opt_set, transport.cpp:76] DEBUG:  
trsp_socket::socket_options = 0x2 [#7fbdb4e0a700/859] [send_reply, 
trans_layer.cpp:585] DEBUG:  Sending to 192.168.131.182:9960 <SIP/2.0 404 User 
not foundTo: <sip:19995@polylin...> [#7fbdb4e0a700/859] [send, 
udp_trsp.cpp:259] DEBUG: send  msg to 192.168.131.182:9960--++--SIP/2.0 404 
User not foundTo: 
<sip:[email protected]>;tag=3DB871D5-5412698D00020955-B5F1B700From: 
phone03<sip:[email protected]>;tag=6438c40aVia: SIP/2.0/UDP 
192.168.131.182:9960;branch=z9hG4bK-d87543-422392751-1--d87543-;rport=9960Call-ID:
 fb56c91b5d5fb136CSeq: 1 INVITEServer: Sip Express Media Server (1.6.0 
(x86_64/linux))Content-Length: 0


> Date: Thu, 11 Sep 2014 18:57:08 +0200
> From: [email protected]
> To: [email protected]; [email protected]
> Subject: Re: [Sems] Can not make call between users registered through sbc
> 
> Hello,
> 
> WangYanchong wrote on 09/10/2014 11:52 AM:
> > Dear SEMS experts:
> > 
> > I've spent several days studying SEMS presentations in kamailio world
> > 2014, and saw the reg caching features very attractive. After several
> > trial of installation, I found the code from github seems have more
> > new features including sbc's reg_caching. After successful compilation
> the code from github (https://github.com/sems-server) should always be
> the same as the code from the primary SEMS repository
> (http://git.sip-router.org/cgi-bin/gitweb.cgi?p=sems;a=summary)
> 
> 
> > and deployment as following, it looks like the reg_caching feature
> > work as expected.
> > 
> > However, when I tried to make a call between phones registered through
> > sbc(192.168.131.1/192.168.131.128) with active sbc profile use
> > transparent.sbcprofile.conf.
> > I always got a 404 error from sems sbc, I can not understand why it
> > does not relay the invitation request to the kamailio server(which is
> > the target registrar server with address 192.168.130.126:5060), and
> > just send out 404 to phones.
> > 
> > Here attached all my configuration files and logs.
> are you sure that the user registered before through the sbc? what
> does the log file look like when you register through the sbc?
> 
> you should see some things like RegCacheLogHandler update: alias='...'
> etc.
> 
> you could also add some more debugging code to
> SBCCallProfile::retarget to see what's going on.
> 
> hth
> Stefan
                                          
 [#7fbdb5f1b700/842] [run, udp_trsp.cpp:352] DEBUG: vv M [|] u recvd msg via 
UDP from 192.168.131.182:9960 vv
--++--
INVITE sip:[email protected] SIP/2.0
To: <sip:[email protected]>
From: phone03<sip:[email protected]>;tag=6438c40a
Via: SIP/2.0/UDP 
192.168.131.182:9960;branch=z9hG4bK-d87543-422392751-1--d87543-;rport
Call-ID: fb56c91b5d5fb136
CSeq: 1 INVITE
Contact: <sip:[email protected]:9960>
Max-Forwards: 70
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, SUBSCRIBE, 
INFO
Content-Type: application/sdp
User-Agent: eyeBeam release 3004t stamp 16741
Content-Length: 226

v=0
o=- 5491130 5491166 IN IP4 192.168.131.182
s=eyeBeam
c=IN IP4 192.168.131.182
t=0 0
m=audio 6164 RTP/AVP 100 6 0 8 3 18 5 101
a=fmtp:101 0-15
a=rtpmap:100 speex/16000
a=rtpmap:101 telephone-event/8000
a=sendrecv
--++--
 [#7fbdb5f1b700/842] [parse_sip_uri, parse_uri.cpp:338] DEBUG:  Converted URI 
port () to int (5060)
 [#7fbdb5f1b700/842] [parse_via_params, parse_via.cpp:521] DEBUG:  parsed 
branch: z9hG4bK-d87543-422392751-1--d87543-
 [#7fbdb5f1b700/842] [parse_via_params, parse_via.cpp:544] DEBUG:  has_rport: 1
 [#7fbdb5f1b700/842] [match_request, trans_table.cpp:99] DEBUG:  Matching 
INVITE request
 [#7fbdb5f1b700/842] [parse_sip_uri, parse_uri.cpp:338] DEBUG:  Converted URI 
port (9960) to int (9960)
 [#7fbdb5f1b700/842] [parse, AmMimeBody.cpp:588] DEBUG:  saving single-part body
 [#7fbdb5f1b700/842] [sip_msg2am_request, SipCtrlInterface.cpp:606] DEBUG:  
MIME body successfully parsed
 [#7fbdb5f1b700/842] [handle_sip_request, SipCtrlInterface.cpp:765] DEBUG:  
Received new request from <192.168.131.182:9960/udp> on intf #0
 [#7fbdb5f1b700/842] [handle_sip_request, SipCtrlInterface.cpp:769] DEBUG:  
req.method = <INVITE>
 [#7fbdb5f1b700/842] [handle_sip_request, SipCtrlInterface.cpp:772] DEBUG:  
req.r_uri = <sip:[email protected]>
 [#7fbdb5f1b700/842] [handle_sip_request, SipCtrlInterface.cpp:773] DEBUG:  
req.from_uri = <sip:[email protected]:9960>
 [#7fbdb5f1b700/842] [handle_sip_request, SipCtrlInterface.cpp:774] DEBUG:  
req.from = <phone03 <sip:[email protected]>>
 [#7fbdb5f1b700/842] [handle_sip_request, SipCtrlInterface.cpp:775] DEBUG:  
req.to = <<sip:[email protected]>>
 [#7fbdb5f1b700/842] [handle_sip_request, SipCtrlInterface.cpp:776] DEBUG:  
req.callid = <fb56c91b5d5fb136>
 [#7fbdb5f1b700/842] [handle_sip_request, SipCtrlInterface.cpp:777] DEBUG:  
req.from_tag = <6438c40a>
 [#7fbdb5f1b700/842] [handle_sip_request, SipCtrlInterface.cpp:778] DEBUG:  
req.to_tag = <>
 [#7fbdb5f1b700/842] [handle_sip_request, SipCtrlInterface.cpp:779] DEBUG:  
cseq = <1>
 [#7fbdb5f1b700/842] [handle_sip_request, SipCtrlInterface.cpp:780] DEBUG:  
req.route = <>
 [#7fbdb5f1b700/842] [handle_sip_request, SipCtrlInterface.cpp:781] DEBUG:  
hdrs = <Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, NOTIFY, MESSAGE, 
SUBSCRIBE, INFO
User-Agent: eyeBeam release 3004t stamp 16741
>
 [#7fbdb5f1b700/842] [handle_sip_request, SipCtrlInterface.cpp:782] DEBUG:  
body-ct = <application/sdp>
 [#7fbdb5f1b700/842] [handleSipMsg, AmSipDispatcher.cpp:105] DEBUG:  method: 
`INVITE' [6].
 [#7fbdb5f1b700/842] [getActiveProfileMatch, SBC.cpp:278] DEBUG:  active 
profile = symmetricrtp
 [#7fbdb5f1b700/842] [getActiveProfileMatch, SBC.cpp:290] DEBUG:  using call 
profile 'symmetricrtp' (from matching active_profile rule 'symmetricrtp')
 [#7fbdb5f1b700/842] [AmSession, AmSession.cpp:86] DEBUG:  dlg = 0x113a5b0
 [#7fbdb5f1b700/842] [setOAEnabled, AmSipDialog.cpp:210] DEBUG:  enabling 
offer_answer on SIP dialog ''
 [#7fbdb5f1b700/842] [setRel100State, AmSipDialog.cpp:204] DEBUG:  setting 
100rel state for '' to 3
 [#7fbdb5f1b700/842] [setLocalTag, AmSession.cpp:226] DEBUG:  
AmSession::setLocalTag() - session id set to 3DB871D5-5412698D00020955-B5F1B700
 [#7fbdb5f1b700/842] [handle_sip_request, SipCtrlInterface.cpp:788] DEBUG:  ^^ 
M [fb56c91b5d5fb136|] Ru SIP request INVITE handled ^^
 [#7fbdb4e0a700/859] [_start, AmThread.cpp:65] DEBUG:  Thread 140452760168192 
is starting.
 [#7fbdb4e0a700/859] [run, AmSession.cpp:264] DEBUG:  startup session
 [#7fbdb4e0a700/859] [run, AmSession.cpp:268] DEBUG:  running session event loop
 [#7fbdb4e0a700/859] [processingCycle, AmSession.cpp:373] DEBUG:  vv S 
[|3DB871D5-5412698D00020955-B5F1B700] Disconnected, running, 0 UACTransPending, 
0 usages vv
 [#7fbdb4e0a700/859] [process, AmSession.cpp:659] DEBUG:  AmSession processing 
event
 [#7fbdb4e0a700/859] [onRxRequest, AmBasicSipDialog.cpp:308] DEBUG:  
AmBasicSipDialog::onRxRequest(req = INVITE)
 [#7fbdb4e0a700/859] [setOutboundInterface, AmBasicSipDialog.cpp:152] DEBUG:  
setting outbound interface to 0
 [#7fbdb4e0a700/859] [setStatus, AmBasicSipDialog.cpp:84] DEBUG:  setting SIP 
dialog status: Disconnected->Trying
 [#7fbdb4e0a700/859] [onRxSdp, AmOfferAnswer.cpp:215] DEBUG:  entering 
onRxSdp(), oa_state=None
 [#7fbdb4e0a700/859] [parse_sdp_line_ex, AmSdp.cpp:567] DEBUG:  parsing SDP 
message...
 [#7fbdb4e0a700/859] [parse_sdp_connection, AmSdp.cpp:796] DEBUG:  SDP: got 
session level connection: IP4 192.168.131.182
 [#7fbdb4e0a700/859] [parse_sdp_media, AmSdp.cpp:939] DEBUG:  SDP: got media: 
port 6164, payloads: 100 6 0 8 3 18 5 101
 [#7fbdb4e0a700/859] [setState, AmOfferAnswer.cpp:69] DEBUG:  setting SIP 
dialog O/A status: None->OfferRecved
 [#7fbdb4e0a700/859] [onRxSdp, AmOfferAnswer.cpp:265] DEBUG:  oa_state: None -> 
OfferRecved
 [#7fbdb4e0a700/859] [onSipRequest, CallLeg.cpp:925] DEBUG:  
3DB871D5-5412698D00020955-B5F1B700: SIP request 1 INVITE received in 
Disconnected state
 [#7fbdb4e0a700/859] [onSipRequest, CallLeg.cpp:934] DEBUG:  handling request 
INVITE in disconnected state
 [#7fbdb4e0a700/859] [onSipRequest, AmSession.cpp:709] DEBUG:  onSipRequest: 
method = INVITE
 [#7fbdb4e0a700/859] [onInvite, SBCCallLeg.cpp:820] DEBUG:  processing initial 
INVITE sip:[email protected]
 [#7fbdb4e0a700/859] [reply, AmBasicSipDialog.cpp:583] DEBUG:  reply: 
transaction found!
 [#7fbdb4e0a700/859] [setStatus, AmBasicSipDialog.cpp:84] DEBUG:  setting SIP 
dialog status: Trying->Early
 [#7fbdb4e0a700/859] [send_reply, trans_layer.cpp:410] DEBUG:  reply_len = 320
 [#7fbdb4e0a700/859] [is_opt_set, transport.cpp:76] DEBUG:  
trsp_socket::socket_options = 0x2
 [#7fbdb4e0a700/859] [is_opt_set, transport.cpp:76] DEBUG:  
trsp_socket::socket_options = 0x2
 [#7fbdb4e0a700/859] [send_reply, trans_layer.cpp:585] DEBUG:  Sending to 
192.168.131.182:9960 <SIP/2.0 100 Connecting
To: <sip:[email protected]...>
 [#7fbdb4e0a700/859] [send, udp_trsp.cpp:259] DEBUG: send  msg to 
192.168.131.182:9960
--++--
SIP/2.0 100 Connecting
To: <sip:[email protected]>
From: phone03<sip:[email protected]>;tag=6438c40a
Via: SIP/2.0/UDP 
192.168.131.182:9960;branch=z9hG4bK-d87543-422392751-1--d87543-;rport=9960
Call-ID: fb56c91b5d5fb136
CSeq: 1 INVITE
Server: Sip Express Media Server (1.6.0 (x86_64/linux))
Content-Length: 0

--++--
 [#7fbdb4e0a700/859] [update_uas_reply, trans_layer.cpp:2126] DEBUG:  
update_uas_reply(t=0x1142bd0)
 [#7fbdb4e0a700/859] [replaceParameters, ParamReplacer.cpp:774] DEBUG:  callid 
pattern replace: '$ci_leg_sems' -> 'fb56c91b5d5fb136_leg_sems'
 [#7fbdb4e0a700/859] [evaluate, SBCCallProfile.cpp:765] DEBUG:  callid = 
'fb56c91b5d5fb136_leg_sems'
 [#7fbdb4e0a700/859] [evaluate, SBCCallProfile.cpp:770] DEBUG:  outbound_proxy 
= 'sip:192.168.130.126:5060'
 [#7fbdb4e0a700/859] [evaluate, SBCCallProfile.cpp:771] DEBUG:  next_hop = 
'192.168.130.126:5060'
 [#7fbdb4e0a700/859] [evaluate, SBCCallProfile.cpp:1640] DEBUG:  transcoder is 
disabled
 [#7fbdb4e0a700/859] [evaluate, SBCCallProfile.cpp:775] DEBUG:  
rtprelay_enabled = 'yes'
 [#7fbdb4e0a700/859] [evaluate, SBCCallProfile.cpp:779] DEBUG:  
force_symmetric_rtp = 'yes'
 [#7fbdb4e0a700/859] [evaluate, SBCCallProfile.cpp:780] DEBUG:  
aleg_force_symmetric_rtp = 'yes'
 [#7fbdb4e0a700/859] [evaluate, SBCCallProfile.cpp:798] DEBUG:  set 
rtprelay_interface to 'default'
 [#7fbdb4e0a700/859] [evaluate, SBCCallProfile.cpp:799] DEBUG:  set 
aleg_rtprelay_interface to 'intern'
 [#7fbdb4e0a700/859] [evaluate, SBCCallProfile.cpp:836] DEBUG:  set 
outbound_interface to 'extern'
 [#7fbdb4e0a700/859] [evaluate, SBCCallProfile.cpp:1750] DEBUG:  
aleg.activity_str = ''
 [#7fbdb4e0a700/859] [evaluate, SBCCallProfile.cpp:1754] DEBUG:  
bleg.activity_str = ''
 [#7fbdb4e0a700/859] [onSipRequest, AmSession.cpp:724] ERROR:  404 User not 
found
 [#7fbdb4e0a700/859] [reply, AmBasicSipDialog.cpp:583] DEBUG:  reply: 
transaction found!
 [#7fbdb4e0a700/859] [onReplyOut, AmOfferAnswer.cpp:427] DEBUG:  after 404 
reply to INVITE: resetting OA state
 [#7fbdb4e0a700/859] [setState, AmOfferAnswer.cpp:69] DEBUG:  setting SIP 
dialog O/A status: OfferRecved->None
 [#7fbdb4e0a700/859] [setStatus, AmBasicSipDialog.cpp:84] DEBUG:  setting SIP 
dialog status: Early->Disconnected
 [#7fbdb4e0a700/859] [send_reply, trans_layer.cpp:410] DEBUG:  reply_len = 363
 [#7fbdb4e0a700/859] [is_opt_set, transport.cpp:76] DEBUG:  
trsp_socket::socket_options = 0x2
 [#7fbdb4e0a700/859] [is_opt_set, transport.cpp:76] DEBUG:  
trsp_socket::socket_options = 0x2
 [#7fbdb4e0a700/859] [send_reply, trans_layer.cpp:585] DEBUG:  Sending to 
192.168.131.182:9960 <SIP/2.0 404 User not found
To: <sip:19995@polylin...>
 [#7fbdb4e0a700/859] [send, udp_trsp.cpp:259] DEBUG: send  msg to 
192.168.131.182:9960
--++--
SIP/2.0 404 User not found
To: <sip:[email protected]>;tag=3DB871D5-5412698D00020955-B5F1B700
From: phone03<sip:[email protected]>;tag=6438c40a
Via: SIP/2.0/UDP 
192.168.131.182:9960;branch=z9hG4bK-d87543-422392751-1--d87543-;rport=9960
Call-ID: fb56c91b5d5fb136
CSeq: 1 INVITE
Server: Sip Express Media Server (1.6.0 (x86_64/linux))
Content-Length: 0

--++--
 [#7fbdb4e0a700/859] [update_uas_reply, trans_layer.cpp:2126] DEBUG:  
update_uas_reply(t=0x1142bd0)
 [#7fbdb4e0a700/859] [reset_timer, sip_trans.cpp:246] DEBUG:  New timer of type 
G at time=15220 (repeated=0)
 [#7fbdb4e0a700/859] [reset_timer, sip_trans.cpp:246] DEBUG:  New timer of type 
H at time=16795 (repeated=0)
 [#7fbdb4e0a700/859] [onReplySent, AmB2BSession.cpp:541] DEBUG:  relayed INVITE 
failed with 404 User not found
 [#7fbdb4e0a700/859] [onReplySent, AmB2BSession.cpp:543] DEBUG:  
recvd_req.erase(<1,INVITE>)
 [#7fbdb4e0a700/859] [onTransFinished, CallLeg.cpp:1720] DEBUG:  UAC/UAS 
transaction finished
 [#7fbdb4e0a700/859] [processingCycle, AmSession.cpp:392] DEBUG:  ^^ S 
[fb56c91b5d5fb136|3DB871D5-5412698D00020955-B5F1B700] Disconnected, stopped, 0 
UACTransPending, 0 usages ^^
 [#7fbdb4e0a700/859] [run, AmSession.cpp:275] DEBUG:  session event loop ended, 
finalizing session
 [#7fbdb4e0a700/859] [finalize, AmSession.cpp:456] DEBUG:  running finalize 
sequence...
 [#7fbdb4e0a700/859] [destroy, AmSession.cpp:501] DEBUG:  AmSession::destroy()
 [#7fbdb4e0a700/859] [stop, AmThread.cpp:114] DEBUG:  Thread 140452760168192 
(140452760168192) calling on_stop, give it a chance to clean up.
 [#7fbdb4e0a700/859] [on_stop, AmSession.cpp:472] DEBUG:  AmSession::stop()
 [#7fbdb4e0a700/859] [clearAudio, AmSession.cpp:651] DEBUG:  Audio cleared !!!
 [#7fbdb4e0a700/859] [stop, AmThread.cpp:129] DEBUG:  Thread 140452760168192 
(140452760168192) finished detach.
 [#7fbdb4e0a700/859] [finalize, AmSession.cpp:464] DEBUG:  session is stopped.
 [#7fbdb4e0a700/859] [_start, AmThread.cpp:68] DEBUG:  Thread 140452760168192 
is ending.
 [#7fbdb601c700/841] [run, udp_trsp.cpp:352] DEBUG: vv M [|] u recvd msg via 
UDP from 192.168.131.182:9960 vv
--++--
ACK sip:[email protected] SIP/2.0
To: <sip:[email protected]>;tag=3DB871D5-5412698D00020955-B5F1B700
From: phone03<sip:[email protected]>;tag=6438c40a
Via: SIP/2.0/UDP 
192.168.131.182:9960;branch=z9hG4bK-d87543-422392751-1--d87543-;rport
Call-ID: fb56c91b5d5fb136
CSeq: 1 ACK
Content-Length: 0

--++--
 [#7fbdb601c700/841] [parse_sip_uri, parse_uri.cpp:338] DEBUG:  Converted URI 
port () to int (5060)
 [#7fbdb601c700/841] [parse_via_params, parse_via.cpp:521] DEBUG:  parsed 
branch: z9hG4bK-d87543-422392751-1--d87543-
 [#7fbdb601c700/841] [parse_via_params, parse_via.cpp:544] DEBUG:  has_rport: 1
 [#7fbdb601c700/841] [match_request, trans_table.cpp:99] DEBUG:  Matching ACK 
request
 [#7fbdb601c700/841] [match_request, trans_table.cpp:118] DEBUG:  do_3261_match 
= 1
 [#7fbdb601c700/841] [process_rcvd_msg, trans_layer.cpp:1621] DEBUG:  ACK 
matched INVITE transaction 0x1142bd0
 [#7fbdb601c700/841] [update_uas_request, trans_layer.cpp:2203] DEBUG:  
update_uas_request(t=0x1142bd0)
 [#7fbdb601c700/841] [reset_timer, sip_trans.cpp:188] DEBUG:  Clearing old 
timer of type G (this=0x10cb430)
 [#7fbdb601c700/841] [reset_timer, sip_trans.cpp:188] DEBUG:  Clearing old 
timer of type H (this=0x1142010)
 [#7fbdb601c700/841] [reset_timer, sip_trans.cpp:246] DEBUG:  New timer of type 
I at time=15445 (repeated=0)
 [#7fbdb601c700/841] [process_rcvd_msg, trans_layer.cpp:1624] DEBUG:  
update_uas_request(bucket,t=0x1142bd0,msg) = 6
 [#7fbdb601c700/841] [process_rcvd_msg, trans_layer.cpp:1646] DEBUG:  Absorbing 
non-200-ACK
 [#7fbdb611d700/840] [run, udp_trsp.cpp:352] DEBUG: vv M [|] u recvd msg via 
UDP from 192.168.131.182:9960 vv
--++--

--++--
 [#7fbdb611d700/840] [received_msg, trans_layer.cpp:1572] DEBUG:  parse_sip_msg 
returned -7
 [#7fbdb611d700/840] [received_msg, trans_layer.cpp:1578] DEBUG:  parsing 
error: Could not parse first line
 [#7fbdb611d700/840] [received_msg, trans_layer.cpp:1580] DEBUG:  Message was: "
"
 [#7fbdb621e700/839] [fire, sip_trans.cpp:205] DEBUG:  Transaction timer 
expired: type=I, trans=0x1142bd0, eta=15445, t=15445
 [#7fbdb621e700/839] [reset_timer, sip_trans.cpp:188] DEBUG:  Clearing old 
timer of type I (this=0x113a0b0)
 [#7fbdb87f7700/825] [clean_sessions, AmSessionContainer.cpp:77] DEBUG:  
Session cleaner starting its work
 [#7fbdb87f7700/825] [clean_sessions, AmSessionContainer.cpp:93] DEBUG:  
session [0x7fbdb4e0a700] has been destroyed
 [#7fbdb87f7700/825] [removeCall, SBCCallRegistry.cpp:78] DEBUG:  
SBCCallRegistry: removed entry for call '3DB871D5-5412698D00020955-B5F1B700'
 [#7fbdb87f7700/825] [~AmB2BSession, AmB2BSession.cpp:89] DEBUG:  
relayed_req.size() = 0
 [#7fbdb87f7700/825] [~AmB2BSession, AmB2BSession.cpp:92] DEBUG:  
recvd_req.size() = 0
 [#7fbdb87f7700/825] [dump, AmBasicSipDialog.cpp:733] DEBUG:  callid = 
fb56c91b5d5fb136
 [#7fbdb87f7700/825] [dump, AmBasicSipDialog.cpp:734] DEBUG:  local_tag = 
3DB871D5-5412698D00020955-B5F1B700
 [#7fbdb87f7700/825] [dump, AmBasicSipDialog.cpp:735] DEBUG:  uac_trans.size() 
= 0
 [#7fbdb87f7700/825] [dump, AmBasicSipDialog.cpp:743] DEBUG:  uas_trans.size() 
= 0
 [#7fbdb87f7700/825] [~AmSession, AmSession.cpp:106] DEBUG:  AmSession 
destructor finished
 [#7fbdb87f7700/825] [run, AmSessionContainer.cpp:136] DEBUG:  Session cleaner 
finished
 [#7fbdb5e1a700/843] [run, udp_trsp.cpp:352] DEBUG: vv M [|] u recvd msg via 
UDP from 192.168.131.182:9960 vv
--++--

--++--
 [#7fbdb5e1a700/843] [received_msg, trans_layer.cpp:1572] DEBUG:  parse_sip_msg 
returned -7
 [#7fbdb5e1a700/843] [received_msg, trans_layer.cpp:1578] DEBUG:  parsing 
error: Could not parse first line
 [#7fbdb5e1a700/843] [received_msg, trans_layer.cpp:1580] DEBUG:  Message was: "
"

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