Hello Olivier,
from what I've understood Asterisk (or its plugin) should act as MRCP
client.
I copy and paste from RFC 4463 (hope it doesn't brake through email
exchange):

     |--------------------|
     ||------------------||                   |----------------------|
     || Application Layer||                   ||--------------------||
     ||------------------||                   || TTS  | ASR  | Fax  ||
     ||  ASR/TTS API     ||                   ||Plugin|Plugin|Plugin||
     ||------------------||                   ||  on  |  on  |  on  ||
     ||    MRCP Core     ||                   || MRCP | MRCP | MRCP ||
     ||  Protocol Stack  ||                   ||--------------------||
     ||------------------||                   ||   RTSP Stack       ||
     ||   RTSP Stack     ||                   ||                    ||
     ||------------------||                   ||--------------------||
     ||   TCP/IP Stack   ||========IP=========||  TCP/IP Stack      ||
     ||------------------||                   ||--------------------||
     |--------------------|                   |----------------------|

        MRCP client                             Real-time Streaming MRCP
                                                 media server



As far as I see RTSP is needed to support MRCP.
But also concerning Asterisk and RTSP I've found little information
online:
http://sip.fontventa.com/content/view/27/54/

and this old email:
http://tinyurl.com/3ccl4f

Is there anything more? :-)

Thanks,
Claudio




________________________________

From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Olivier
Sent: Sunday, January 13, 2008 4:52 PM
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: Re: [asterisk-users] MRCP Asterisk Integration


I think such feature should rather come from VXML server but I may be
wrong.
Regards


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