uniMRCP + UCCX + Azure (local containers), RTP arrives but ASR returns no-input; guidance requested

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Daniel Friedman

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Sep 7, 2025, 9:30:27 AM (4 days ago) Sep 7
to UniMRCP

Hi UniMRCP Support Team,

 

We’re troubleshooting an integration where UCCX talks to UniMRCP (masquerading as LumenVox)

and UniMRCP fans out to local Azure Speech containers (STT/TTS).

RTP clearly reaches UniMRCP, but recognition consistently ends with no-input.

 

Details below, plus a call log attached.

 

Environment / versions

  • UniMRCP Server: 1.7.0
  • SofiaSIP: 1.12.11-239-g54ef3e2
  • APR: 1.5.2
  • Azure STT plugin (umsazuresr): 1.32.0
  • Azure TTS plugin (umsazuress): 1.25.1
  • Licenses: SR 2 ch, SS 4 ch
  • OS: Debian-based VM; packages upgraded via apt-get to latest available

 

Architecture

  1. UCCXUniMRCP (we present as “LumenVox Media Server” because UCCX doesn’t support UniMRCP server directly).
  2. UniMRCPAzure local containers

What works

  • SIP/MRCPv2 signaling is clean. Channel comes up, grammars are defined, and RECOGNIZE requests are accepted.
  • RTP session opens: UniMRCP answers with PCMU/8000 (recvonly).
  • We captured the RTP stream at the UniMRCP host and can play it in Wireshark, you can clearly hear “yes” / “no”.
  • The Azure STT WebSocket session is established and upgraded (101 Switching Protocols).

 

Symptoms

  • Despite RTP arriving, the UniMRCP log shows:
    • Input Complete [success] size=0 bytes, dur=0 ms
    • Followed by RECOGNITION-COMPLETE ... Completion-Cause: 002 no-input-timeout
  • Periodic warnings appear when MRCP messages are received (from UCCX):
    • WARN Cannot read the first field in start-line
      (Messages still seem to be processed
      , grammar loads, recognize starts, so unsure if this is benign parsing noise or relevant.)

 

Evidence from logs (high level)

  • RTP receive: e.g., Open RTP Receiver 10.80.64.150:4002 <- 10.80.60.105:25308
  • Media path: Source->[PCMU/8000/1]->Decoder->[LPCM/8000/1]->Bridge->[LPCM/8000/1]->Sink
  • Files opened (for debugging): both 8 kHz and 16 kHz WAV writers open, and a resampler to 16 kHz is created for the Azure STT container.
  • VAD: start-of-input=internal, noinput-timeout=10000 ms, VAD mode 0; yet recorded size remains 0.

 

Config highlights (current)

  • SIP transport: TCP 5060.
  • MRCPv2: passive setup on server, port 1544.
  • RTP: PCMU/8000 and telephone-event advertised; jitter buffer enabled; ptime 20 ms.
  • Profiles: speechrecog → Azure-SR-1 (umsazuresr 1.32.0); speechsynth → Azure-SS-1.

 

What we’ve already tried

  • Verified audio path with PCAP (playable, intelligible).
  • Reduced advertised codecs to PCMU + DTMF.
  • Cleaned up unimrcpserver.xml to remove non-schema elements; resolved earlier config warnings.
  • Upgraded UniMRCP modules (now on umsazuresr 1.32.0; TTS remains 1.25.1).

 

Questions for your guidance

  1. VAD / audio handoff: Given that RTP is received and decodes to LPCM, what would cause size=0 bytes on the recognizer side? Any known issues in umsazuresr 1.32.0 with μ-law 8 kHz input, internal VAD, or resampling to 16 kHz before sending to Azure?
  2. MRCP parse warnings: Is Cannot read the first field in start-line expected with UCCX’s MRCPv2 framing, or does it indicate a line-ending/BOM/framing quirk that could influence VAD or timing?
  3. Best-practice knobs:
    • Should we set start-of-input = external and rely solely on UCCX’s START-INPUT-TIMERS, or keep internal?
    • Any recommended VAD parameters (e.g., thresholds, leading/trailing silence) for 8 kHz μ-law from Cisco gateways/UCCX?
    • Any reason to prefer InputFormat over AudioFormat for STT in 1.32.0?
  4. Codec/ptime: Are there known corner cases with UCCX offering sendonly PCMU and UniMRCP answering recvonly that would require adjusting ptime, jitter buffer, or SOA settings?

 

Attachments

  • uniMRCP_Log_9-May-2025.txt (full call flow showing RTP open, RECOGNIZE, VAD/no-input)
  • PCAP of the call (available on request)

 

Any pointers, known issues, or recommended config tweaks would be greatly appreciated.

We’re happy to provide additional traces/configs as needed.

 

Thank you,

Dani 

 


Daniel Friedman

unread,
Sep 7, 2025, 9:34:26 AM (4 days ago) Sep 7
to UniMRCP
here are the logs:

2025-09-07 15:35:05:551373 [INFO]   Receive SIP Event [nua_i_invite] Status 100 Trying [SIP-Agent-1]
2025-09-07 15:35:05:551386 [INFO]   Receive SIP Event [nua_i_state] Status 100 Trying [SIP-Agent-1]
2025-09-07 15:35:05:551390 [NOTICE] SIP Call State  [received]
2025-09-07 15:35:05:551400 [INFO]   Create Session 0x7f6c84002808 <new> [uni2]
2025-09-07 15:35:05:551405 [INFO]   Remote SDP 0x7f6c84002808 <new>
v=0
o=- 123 456 IN IP4 10.80.60.105
s=Unified Contact Center Express 12.5.1.11003-511
c=IN IP4 10.80.60.105
t=0 0
m=audio 25448 RTP/AVP 0 96
a=rtpmap:0 pcmu/8000
a=rtpmap:96 telephone-event/8000
a=fmtp:96 0-15
a=sendonly
a=mid:1
m=application 9 TCP/MRCPv2 19
a=setup:active
a=connection:new
a=fmtp:96 0-15
a=resource:speechrecog
a=cmid:1

2025-09-07 15:35:05:553403 [NOTICE] Add Session <f2981b70f54f4ebe>
2025-09-07 15:35:05:553426 [INFO]   Receive Offer 0x7f6c84002808 <f2981b70f54f4ebe> [c:1 a:1 v:0]
2025-09-07 15:35:05:553433 [INFO]   Found MRCP Engine [Azure-SR-1] for Resource [speechrecog] 0x7f6c84002808 <f2981b70f54f4ebe>
2025-09-07 15:35:05:553472 [INFO]   Add Pending Control Channel <f2981b70f54f4ebe@speechrecog> [1]
2025-09-07 15:35:05:557305 [INFO]   Enable RTP Session 10.80.64.150:4002
2025-09-07 15:35:05:557324 [INFO]   Open RTP Receiver 10.80.64.150:4002 <- 10.80.60.105:25448 playout [50 ms] bounds [0 - 200 ms] adaptive [1] skew detection [1]
2025-09-07 15:35:05:557336 [INFO]   Media Path 0x7f6c84002808 Source->[PCMU/8000/1]->Decoder->[LPCM/8000/1]->Bridge->[LPCM/8000/1]->Sink
2025-09-07 15:35:05:557405 [INFO]   Open <f2981b70f54f4ebe@azuresr>
2025-09-07 15:35:05:557442 [NOTICE] AZURESR Usage: 1/1/2
2025-09-07 15:35:05:557460 [INFO]   Send Answer 0x7f6c84002808 <f2981b70f54f4ebe> [c:1 a:1 v:0] Status OK
2025-09-07 15:35:05:557463 [NOTICE] Usage [umsazuresr] min [0] cur [1] max [1]
2025-09-07 15:35:05:557487 [INFO]   Local SDP 0x7f6c84002808 <f2981b70f54f4ebe>
v=0
o=LumenVoxMediaServer 0 0 IN IP4 10.80.64.150
s=-
c=IN IP4 10.80.64.150
t=0 0
m=audio 4002 RTP/AVP 0 101
a=rtpmap:0 PCMU/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=recvonly
a=mid:1
m=application 1544 TCP/MRCPv2 1
a=setup:passive
a=connection:new
a=channel:f2981b70f54f4ebe@speechrecog
a=cmid:1

2025-09-07 15:35:05:558069 [INFO]   Receive SIP Event [nua_i_state] Status 200 OK [SIP-Agent-1]
2025-09-07 15:35:05:558078 [NOTICE] SIP Call State 0x7f6c84002808 [completed]
2025-09-07 15:35:05:572983 [INFO]   Receive SIP Event [nua_i_ack] Status 200 OK [SIP-Agent-1]
2025-09-07 15:35:05:572999 [INFO]   Receive SIP Event [nua_i_state] Status 200 OK [SIP-Agent-1]
2025-09-07 15:35:05:573004 [NOTICE] SIP Call State 0x7f6c84002808 [ready]
2025-09-07 15:35:05:573007 [INFO]   Receive SIP Event [nua_i_active] Status 200 Call active [SIP-Agent-1]
2025-09-07 15:35:05:573634 [NOTICE] Accepted TCP/MRCPv2 Connection 10.80.64.150:1544 <-> 10.80.60.105:54388
2025-09-07 15:35:05:573880 [INFO]   Receive MRCPv2 Data 10.80.64.150:1544 <-> 10.80.60.105:54388 [763 bytes]
MRCP/2.0 761 DEFINE-GRAMMAR 100
Channel-Identifier: f2981b70f54f4ebe@speechrecog
Content-Type:application/srgs+xml
Speech-Language:en-US
Content-Id:SimpleRe...@DialogObject.grammar
Content-Length: 544

<?xml version="1.0" encoding="UTF-8"?>
<grammar root="main" tag-format="swi-semantics/1.0" version="1.0" xml:lang="en-US" xmlns="http://www.w3.org/2001/06/grammar">
 <rule id="main" scope="public">
 <one-of>
 <item>
 <ruleref uri="#MI_1_elem0_rule"/>
 <tag>
 mtag='yes'
 </tag>
 </item>
 <item>
 <ruleref uri="#MI_3_elem1_rule"/>
 <tag>
 mtag='no'
 </tag>
 </item>
 </one-of>
 </rule>
 <rule id="MI_1_elem0_rule" scope="public">
 <item>
 yes
 </item>
 </rule>
 <rule id="MI_3_elem1_rule" scope="public">
 <item>
 no
 </item>
 </rule>
</grammar>


2025-09-07 15:35:05:573920 [INFO]   Assign Control Channel <f2981b70f54f4ebe@speechrecog> to Connection 10.80.64.150:1544 <-> 10.80.60.105:54388 [0] -> [1]
2025-09-07 15:35:05:573934 [WARN]   Cannot read the first field in start-line
2025-09-07 15:35:05:573937 [WARN]   Failed to Parse MRCPv2 Data
2025-09-07 15:35:05:573940 [WARN]   Cannot read the first field in start-line
2025-09-07 15:35:05:573955 [INFO]   Process DEFINE-GRAMMAR Request <f2981b70f54f4ebe@speechrecog> [100]
2025-09-07 15:35:05:574101 [INFO]   Process DEFINE-GRAMMAR Response <f2981b70f54f4ebe@speechrecog> [100]
2025-09-07 15:35:05:574127 [INFO]   Send MRCPv2 Data 10.80.64.150:1544 <-> 10.80.60.105:54388 [114 bytes]
MRCP/2.0 114 100 200 COMPLETE
Channel-Identifier: f2981b70f54f4ebe@speechrecog
Completion-Cause: 000 success


2025-09-07 15:35:05:677073 [INFO]   Receive MRCPv2 Data 10.80.64.150:1544 <-> 10.80.60.105:54388 [275 bytes]
MRCP/2.0 273 RECOGNIZE 101
Channel-Identifier: f2981b70f54f4ebe@speechrecog
Cancel-If-Queue: false
No-Input-Timeout:10000
Content-Type:text/uri-list
Speech-Language:en-US
Start-Input-Timers:false
Content-Length: 46

session:SimpleRe...@DialogObject.grammar


2025-09-07 15:35:05:677137 [WARN]   Cannot read the first field in start-line
2025-09-07 15:35:05:677141 [WARN]   Failed to Parse MRCPv2 Data
2025-09-07 15:35:05:677142 [WARN]   Cannot read the first field in start-line
2025-09-07 15:35:05:677175 [INFO]   Process RECOGNIZE Request <f2981b70f54f4ebe@speechrecog> [101]
2025-09-07 15:35:05:677255 [INFO]   Init Speech Detector: frame-duration=10 ms, frame-size=160, max-frame-count=1550, output-frame-count=20, vad-mode=0, noinput-timeout=10000 ms, input-timeout=30000 ms, start-timeout=50 ms, complete-timeout=1000 ms, incomplete-timeout=15000 ms, leading-silence=300 ms, trailing-silence=300 ms, interim-results=1, start-of-input=external <f2981b70f54f4ebe>
2025-09-07 15:35:05:677289 [INFO]   Open Waveform File for Writing /opt/unimrcp/var/umsazuresr-f2981b70f54f4ebe-101-8-kHz.wav, sampling-rate [8000]
2025-09-07 15:35:05:677417 [INFO]   Select Service Endpoint: method [round-robin] exclude [0] language [en-US] profile []
2025-09-07 15:35:05:677424 [INFO]   Set Subscription Profile [cognitive.stt.key] <f2981b70f54f4ebe@azuresr>
2025-09-07 15:35:05:677430 [INFO]   Set Recognition Mode [interactive] <f2981b70f54f4ebe@azuresr>
2025-09-07 15:35:05:677476 [INFO]   Create Resampler from 8000 Hz to 16000 Hz <f2981b70f54f4ebe@azuresr>
2025-09-07 15:35:05:677508 [INFO]   Initiate WS connection <f2981b70f54f4ebe> guid [6d45158fe0214486ae883e90036d3107] uri [http://localhost:5001/speech/recognition/interactive/cognitiveservices/v1?format=detailed&language=en-US]
2025-09-07 15:35:05:677517 [INFO]   Open Waveform File for Writing /opt/unimrcp/var/umsazuresr-f2981b70f54f4ebe-101-16-kHz.wav, sampling-rate [16000]
2025-09-07 15:35:05:677583 [INFO]   Process RECOGNIZE Response <f2981b70f54f4ebe@speechrecog> [101]
2025-09-07 15:35:05:677587 [INFO]   State Transition IDLE -> RECOGNIZING <f2981b70f54f4ebe@speechrecog>
2025-09-07 15:35:05:677604 [INFO]   Send MRCPv2 Data 10.80.64.150:1544 <-> 10.80.60.105:54388 [85 bytes]
MRCP/2.0 85 101 200 IN-PROGRESS
Channel-Identifier: f2981b70f54f4ebe@speechrecog


2025-09-07 15:35:05:677630 [INFO]   WS connected <f2981b70f54f4ebe>
2025-09-07 15:35:05:677636 [INFO]   WS upgrade guid [6d45158fe0214486ae883e90036d3107] <f2981b70f54f4ebe>
2025-09-07 15:35:05:680783 [INFO]   WS upgraded <f2981b70f54f4ebe>
HTTP/1.1 101 Switching Protocols
Connection: Upgrade
Date: Sun, 07 Sep 2025 12:35:04 GMT
Server: Kestrel
Upgrade: websocket
Sec-WebSocket-Accept: vSoikejPr3e5BeyEKyn5kfvso1I=


2025-09-07 15:35:05:680833 [INFO]   Send WS msg [232 bytes] <f2981b70f54f4ebe>
Path:speech.config
X-Timestamp:2025-09-07T15:35:05.680815
Content-Type:application/json; charset=utf-8

{"context":{"system":{"version":"2.0.12341"}},"device":{"manufacturer":"UniSpeech","model":"umsazuresr","version":"1.32.0"}}
2025-09-07 15:35:08:047707 [INFO]   Receive MRCPv2 Data 10.80.64.150:1544 <-> 10.80.60.105:54388 [90 bytes]
MRCP/2.0 88 START-INPUT-TIMERS 102
Channel-Identifier: f2981b70f54f4ebe@speechrecog



2025-09-07 15:35:08:047759 [WARN]   Cannot read the first field in start-line
2025-09-07 15:35:08:047781 [INFO]   Process START-INPUT-TIMERS Request <f2981b70f54f4ebe@speechrecog> [102]
2025-09-07 15:35:08:047827 [INFO]   Start No-Input Timer [10000 ms] <f2981b70f54f4ebe>
2025-09-07 15:35:08:047851 [INFO]   Process START-INPUT-TIMERS Response <f2981b70f54f4ebe@speechrecog> [102]
2025-09-07 15:35:08:047873 [INFO]   Send MRCPv2 Data 10.80.64.150:1544 <-> 10.80.60.105:54388 [82 bytes]
MRCP/2.0 82 102 200 COMPLETE
Channel-Identifier: f2981b70f54f4ebe@speechrecog


2025-09-07 15:35:18:047357 [INFO]   Input Complete [success] size=0 bytes, dur=0 ms <f2981b70f54f4ebe@azuresr>
2025-09-07 15:35:18:047410 [NOTICE] UTTM total file entries [7] timers [7]
2025-09-07 15:35:18:047419 [NOTICE] UTTM total file entries [8] timers [8]
2025-09-07 15:35:18:047590 [NOTICE] RDRM total file entries [4] timers [4]
2025-09-07 15:35:18:047591 [INFO]   Process RECOGNITION-COMPLETE Event <f2981b70f54f4ebe@speechrecog> [101]
2025-09-07 15:35:18:047626 [INFO]   State Transition RECOGNIZING -> RECOGNIZED <f2981b70f54f4ebe@speechrecog>
2025-09-07 15:35:18:047652 [INFO]   Send MRCPv2 Data 10.80.64.150:1544 <-> 10.80.60.105:54388 [140 bytes]
MRCP/2.0 140 RECOGNITION-COMPLETE 101 COMPLETE
Channel-Identifier: f2981b70f54f4ebe@speechrecog
Completion-Cause: 002 no-input-timeout


2025-09-07 15:35:18:063759 [INFO]   Receive MRCPv2 Data 10.80.64.150:1544 <-> 10.80.60.105:54388 [763 bytes]
MRCP/2.0 761 DEFINE-GRAMMAR 103
Channel-Identifier: f2981b70f54f4ebe@speechrecog
Content-Type:application/srgs+xml
Speech-Language:en-US
Content-Id:SimpleRe...@DialogObject.grammar
Content-Length: 544

<?xml version="1.0" encoding="UTF-8"?>
<grammar root="main" tag-format="swi-semantics/1.0" version="1.0" xml:lang="en-US" xmlns="http://www.w3.org/2001/06/grammar">
 <rule id="main" scope="public">
 <one-of>
 <item>
 <ruleref uri="#MI_1_elem0_rule"/>
 <tag>
 mtag='yes'
 </tag>
 </item>
 <item>
 <ruleref uri="#MI_3_elem1_rule"/>
 <tag>
 mtag='no'
 </tag>
 </item>
 </one-of>
 </rule>
 <rule id="MI_1_elem0_rule" scope="public">
 <item>
 yes
 </item>
 </rule>
 <rule id="MI_3_elem1_rule" scope="public">
 <item>
 no
 </item>
 </rule>
</grammar>


2025-09-07 15:35:18:063813 [WARN]   Cannot read the first field in start-line
2025-09-07 15:35:18:063816 [WARN]   Failed to Parse MRCPv2 Data
2025-09-07 15:35:18:063818 [WARN]   Cannot read the first field in start-line
2025-09-07 15:35:18:063850 [INFO]   Process DEFINE-GRAMMAR Request <f2981b70f54f4ebe@speechrecog> [103]
2025-09-07 15:35:18:063868 [INFO]   State Transition RECOGNIZED -> IDLE <f2981b70f54f4ebe@speechrecog>
2025-09-07 15:35:18:064030 [INFO]   Process DEFINE-GRAMMAR Response <f2981b70f54f4ebe@speechrecog> [103]
2025-09-07 15:35:18:064055 [INFO]   Send MRCPv2 Data 10.80.64.150:1544 <-> 10.80.60.105:54388 [114 bytes]
MRCP/2.0 114 103 200 COMPLETE
Channel-Identifier: f2981b70f54f4ebe@speechrecog
Completion-Cause: 000 success


2025-09-07 15:35:18:067620 [INFO]   Receive MRCPv2 Data 10.80.64.150:1544 <-> 10.80.60.105:54388 [275 bytes]
MRCP/2.0 273 RECOGNIZE 104
Channel-Identifier: f2981b70f54f4ebe@speechrecog
Cancel-If-Queue: false
No-Input-Timeout:10000
Content-Type:text/uri-list
Speech-Language:en-US
Start-Input-Timers:false
Content-Length: 46

session:SimpleRe...@DialogObject.grammar


2025-09-07 15:35:18:067672 [WARN]   Cannot read the first field in start-line
2025-09-07 15:35:18:067675 [WARN]   Failed to Parse MRCPv2 Data
2025-09-07 15:35:18:067676 [WARN]   Cannot read the first field in start-line
2025-09-07 15:35:18:067691 [INFO]   Process RECOGNIZE Request <f2981b70f54f4ebe@speechrecog> [104]
2025-09-07 15:35:18:067743 [INFO]   Init Speech Detector: frame-duration=10 ms, frame-size=160, max-frame-count=1550, output-frame-count=20, vad-mode=0, noinput-timeout=10000 ms, input-timeout=30000 ms, start-timeout=50 ms, complete-timeout=1000 ms, incomplete-timeout=15000 ms, leading-silence=300 ms, trailing-silence=300 ms, interim-results=1, start-of-input=external <f2981b70f54f4ebe>
2025-09-07 15:35:18:067796 [INFO]   Open Waveform File for Writing /opt/unimrcp/var/umsazuresr-f2981b70f54f4ebe-104-8-kHz.wav, sampling-rate [8000]
2025-09-07 15:35:18:067855 [INFO]   Set Recognition Mode [interactive] <f2981b70f54f4ebe@azuresr>
2025-09-07 15:35:18:067891 [INFO]   Reset Resampler <f2981b70f54f4ebe@azuresr>
2025-09-07 15:35:18:067896 [INFO]   Open Waveform File for Writing /opt/unimrcp/var/umsazuresr-f2981b70f54f4ebe-104-16-kHz.wav, sampling-rate [16000]
2025-09-07 15:35:18:067932 [INFO]   Process RECOGNIZE Response <f2981b70f54f4ebe@speechrecog> [104]
2025-09-07 15:35:18:067936 [INFO]   State Transition IDLE -> RECOGNIZING <f2981b70f54f4ebe@speechrecog>
2025-09-07 15:35:18:067952 [INFO]   Send MRCPv2 Data 10.80.64.150:1544 <-> 10.80.60.105:54388 [85 bytes]
MRCP/2.0 85 104 200 IN-PROGRESS
Channel-Identifier: f2981b70f54f4ebe@speechrecog


2025-09-07 15:35:20:276951 [INFO]   Receive MRCPv2 Data 10.80.64.150:1544 <-> 10.80.60.105:54388 [76 bytes]
MRCP/2.0 74 STOP 105
Channel-Identifier: f2981b70f54f4ebe@speechrecog



2025-09-07 15:35:20:277003 [WARN]   Cannot read the first field in start-line
2025-09-07 15:35:20:277048 [INFO]   Process STOP Request <f2981b70f54f4ebe@speechrecog> [105]
2025-09-07 15:35:20:277213 [INFO]   Close HTTP connection <f2981b70f54f4ebe>
2025-09-07 15:35:20:277303 [INFO]   Input Complete [stopped] size=0 bytes, dur=0 ms <f2981b70f54f4ebe@azuresr>
2025-09-07 15:35:20:277348 [NOTICE] UTTM total file entries [9] timers [9]
2025-09-07 15:35:20:277360 [NOTICE] UTTM total file entries [10] timers [10]
2025-09-07 15:35:20:277517 [INFO]   Process STOP Response <f2981b70f54f4ebe@speechrecog> [105]
2025-09-07 15:35:20:277526 [INFO]   State Transition RECOGNIZING -> IDLE <f2981b70f54f4ebe@speechrecog>
2025-09-07 15:35:20:277530 [NOTICE] RDRM total file entries [5] timers [5]
2025-09-07 15:35:20:277548 [INFO]   Send MRCPv2 Data 10.80.64.150:1544 <-> 10.80.60.105:54388 [112 bytes]
MRCP/2.0 112 105 200 COMPLETE
Channel-Identifier: f2981b70f54f4ebe@speechrecog
Active-Request-Id-List: 104


2025-09-07 15:35:21:307585 [INFO]   Receive MRCPv2 Data 10.80.64.150:1544 <-> 10.80.60.105:54388 [76 bytes]
MRCP/2.0 74 STOP 106
Channel-Identifier: f2981b70f54f4ebe@speechrecog



2025-09-07 15:35:21:307656 [WARN]   Cannot read the first field in start-line
2025-09-07 15:35:21:307732 [INFO]   Process STOP Request <f2981b70f54f4ebe@speechrecog> [106]
2025-09-07 15:35:21:307774 [INFO]   Send MRCPv2 Data 10.80.64.150:1544 <-> 10.80.60.105:54388 [82 bytes]
MRCP/2.0 82 106 200 COMPLETE
Channel-Identifier: f2981b70f54f4ebe@speechrecog


2025-09-07 15:35:21:328388 [INFO]   TCP/MRCPv2 Peer Disconnected 10.80.64.150:1544 <-> 10.80.60.105:54388
2025-09-07 15:35:21:336435 [INFO]   Receive SIP Event [nua_i_bye] Status 200 Session Terminated [SIP-Agent-1]
2025-09-07 15:35:21:336452 [INFO]   Receive SIP Event [nua_i_state] Status 200 Session Terminated [SIP-Agent-1]
2025-09-07 15:35:21:336458 [NOTICE] SIP Call State 0x7f6c84002808 [terminated]
2025-09-07 15:35:21:336473 [INFO]   Receive SIP Event [nua_i_terminated] Status 200 Session Terminated [SIP-Agent-1]
2025-09-07 15:35:21:336833 [INFO]   Deactivate Session 0x7f6c84002808 <f2981b70f54f4ebe>
2025-09-07 15:35:21:336848 [INFO]   Terminate Session 0x7f6c84002808 <f2981b70f54f4ebe>
2025-09-07 15:35:21:336887 [INFO]   Remove Control Channel <f2981b70f54f4ebe@speechrecog> [0]
2025-09-07 15:35:21:336907 [INFO]   Close <f2981b70f54f4ebe@azuresr>
2025-09-07 15:35:21:336958 [INFO]   Close HTTP connection <f2981b70f54f4ebe>
2025-09-07 15:35:21:337013 [NOTICE] AZURESR Usage: 0/1/2
2025-09-07 15:35:21:337050 [NOTICE] Usage [umsazuresr] min [0] cur [0] max [1]
2025-09-07 15:35:21:337274 [INFO]   Close RTP Receiver 10.80.64.150:4002 <- 10.80.60.105:25448 [r:157 l:0 j:0 p:50 d:0 i:157]
2025-09-07 15:35:21:338714 [INFO]   Remove RTP Session 10.80.64.150:4002
2025-09-07 15:35:21:338719 [INFO]   Generate RTCP RR [ssrc:2097 last_seq:2258 j:0 lost:0 frac:0]
2025-09-07 15:35:21:338722 [INFO]   Send Compound RTCP Packet [BYE] [80 bytes] 10.80.64.150:4003 -> 10.80.60.105:25449
2025-09-07 15:35:21:338794 [NOTICE] Destroy TCP/MRCPv2 Connection 10.80.64.150:1544 <-> 10.80.60.105:54388
2025-09-07 15:35:21:338815 [NOTICE] Remove Session <f2981b70f54f4ebe>
2025-09-07 15:35:21:338818 [INFO]   Session Terminated 0x7f6c84002808 <f2981b70f54f4ebe>
2025-09-07 15:35:21:338840 [NOTICE] Destroy Session <f2981b70f54f4ebe>
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