Hi Guys,

I am in the process of configuring an speech recognition IVR using freeswitch and nuance, with the module unimrcp to link them.  This seems to be working fine, I have create a basic IVR script that works well however  around 50% - 60% of calls fail with some sort of input timeout issue.

Here is a few relevant lines of the log file for a successful call:

2011-09-11 09:07:18.017882 [DEBUG] mrcp_stream.c:382 Parsed MRCP Message [70]

2011-09-11 09:07:18.017882 [DEBUG] mrcp_client.c:1104 Signal Connection Task Message

2011-09-11 09:07:18.017882 [DEBUG] mrcp_client.c:974 Receive Connection Task Message [3]

2011-09-11 09:07:18.017882 [INFO] mrcp_client_session.c:504 Raise App MRCP Response 0xb7252778 <160>

2011-09-11 09:07:18.017882 [DEBUG] mod_unimrcp.c:3094 (ASR-16) RECOGNIZE IN PROGRESS

2011-09-11 09:07:18.017882 [DEBUG] mod_unimrcp.c:1488 (ASR-16) READY ==> PROCESSING

2011-09-11 09:07:18.017882 [DEBUG] apt_consumer_task.c:90 Wait for Task Messages [MRCP Client]

2011-09-11 09:07:18.017882 [DEBUG] switch_core_media_bug.c:360 Attaching BUG to sofia/internal/1000@10.3.5.80

2011-09-11 09:07:18.690084 [DEBUG] mpf_timer_manager.c:180 Timer Elapsed 0xb7252d18 [1000]

2011-09-11 09:07:18.690084 [DEBUG] mpf_timer_manager.c:111 Set Timer 0xb7252d18 [2000]

2011-09-11 09:07:19.446976 [INFO] mrcp_client_connection.c:525 Receive MRCPv2 Stream 10.3.5.80:49844 <-> 10.3.15.180:6075 [136 bytes]

MRCP/2.0 136 START-OF-INPUT 2 IN-PROGRESS

Channel-Identifier: 160@speechrecog

Proxy-Sync-Id: 0-160@speechrecog

Input-Type: speech

Here are a few lines for an unsuccessful call:

2011-09-11 09:07:44.605658 [DEBUG] mrcp_stream.c:382 Parsed MRCP Message [70]

2011-09-11 09:07:44.605658 [DEBUG] mrcp_client.c:1104 Signal Connection Task Message

2011-09-11 09:07:44.606901 [DEBUG] mrcp_client.c:974 Receive Connection Task Message [3]

2011-09-11 09:07:44.606901 [INFO] mrcp_client_session.c:504 Raise App MRCP Response 0xb72d8228 <161>

2011-09-11 09:07:44.606901 [DEBUG] mod_unimrcp.c:3094 (ASR-17) RECOGNIZE IN PROGRESS

2011-09-11 09:07:44.606901 [DEBUG] mod_unimrcp.c:1488 (ASR-17) READY ==> PROCESSING

2011-09-11 09:07:44.606901 [DEBUG] apt_consumer_task.c:90 Wait for Task Messages [MRCP Client]

2011-09-11 09:07:44.606901 [DEBUG] switch_core_media_bug.c:360 Attaching BUG to sofia/internal/1000@10.3.5.80

2011-09-11 09:07:44.814845 [INFO] mrcp_client_connection.c:525 Receive MRCPv2 Stream 10.3.5.80:49845 <-> 10.3.15.180:6075 [141 bytes]

MRCP/2.0 141 RECOGNITION-COMPLETE 2 COMPLETE

Channel-Identifier: 161@speechrecog

Waveform-URI:

Completion-Cause: 002 no-input-timeout

It seems to me the main difference is that in the successful call there is a timer that is set. Has anybody seen this issue or have any idea’s on how to resolve it?