UniMRCP Package for Asterisk 1.1.0 has been released and can be downloaded from the following location:

http://unimrcp.googlecode.com/files/uni-ast-package-1.1.0.tar.gz

The released package consists of the main software components listed below.

• Asterisk 11.4.0
• UniMRCP r1988 (> 1.1.0)
• UniMRCP Dependencies 1.1.3
• UniMRCP Modules for Asterisk 1.1.0

Besides the versions of Asterisk and UniMRCP included this package, the released UniMRCP modules for Asterisk are compatible with:

• Asterisk 1.6, 1.8, 10, and 11
• UniMRCP r1988 and above

This is a minor release which includes the following changes.

1. Generic Speech Recognition API (res_speech_unimrcp.so)

• Use the new NLSML parser interface to build ast_speech_result based on the parsed nlsml_result_t structure.
• Added support for alternate interpretations (N-Best-List) as well as multiple instances per interpretation.

2. Dialplan Applications (app_unimrcp.so)

  2.1. MRCPSynth()

• Added support for prompts referenced by a URI.
• Differentiate the cases when synthesis is terminated due to an error or caller hang-up. In the latter case, the variable "SYNTHSTATUS" is set to the new status "INTERRUPTED".
• Fixed a possible file handle leak.

  2.2. MRCPRecog()

• Modified the default value of the option "i" (interrupt) in order to enable the DTMF support by default. In order to disable DTMFs, use the option i=disable. The other settings/values remain intact.
• Added a new option "uer" (URI-encoded results). By default, this option is disabled (uer=0). If the option is enabled (uer=1), the variable "RECOG_RESULT" holds URI-encoded results. This matters in case of the AMI use.
• If the application creation fails on start-up, set the corresponding variable "mrcprecog" to NULL.
• Differentiate the cases when recognition is terminated due to an error or caller hang-up. In the latter case, the variable "RECOGSTATUS" is set to the new status "INTERRUPTED".
• Dropped support for the barge-in handled on/by Asterisk (bargein=2). The option bargein can now simply be enabled (1) or disabled (0).
• Set the dialplan variables "RECOG_COMPLETION_CAUSE", "RECOG_RESULT", and optionally "RECOG_WAVEFORM_URI" in accordance with the application SynthAndRecog().
• Added support for the method "Start-Input-Timers".
• Took out the input option "sit", since the header field "START-INPUT-TIMERS" is now set and controlled implicitly by the application.

  2.3. SynthAndRecog()

• Added support for prompts referenced by a URI.
• Added a new option "uer" (URI-encoded results). By default, this option is disabled (uer=0). If the option is enabled (uer=1), the variable "RECOG_RESULT" holds URI-encoded results. This matters in case of the AMI use.
• Differentiate the cases when recognition is terminated due to an error or caller hang-up. In the latter case, the variable "RECOG_STATUS" is set to the new status "INTERRUPTED".

3. Miscellaneous

• Terminate the MRCP session when negotiated codec descriptor cannot be retrieved by a user application.
• Prevent a possible segfault of Asterisk caused by malformed input parameters (Issue-157).
• Added a new enumeration speech_channel_status_t used by the applications to set the corresponding status variable on exit.
• Fixed possible memory leaks in the processing of ast_frames.
• Added new dialplan functions RECOG_CONFIDENCE(), RECOG_GRAMMAR(), RECOG_INPUT(), and RECOG_INSTANCE() to retrieve recognition results set by the applications MRCPRecog() and SynthAndRecog().
• Updated the XML documentation of the dialplan applications and custom functions.
• Improved the log statements.
• Added more usage examples and helper macros which output recognition results by using the new dialplan functions.
• Normalize application input arguments by stripping any leading and trailing whitespaces and skipping the quotes.

Thanks for using UniMRCP.