[Freeswitch-users] VoiceXML

mszlazak at aol.com mszlazak at aol.com
Wed Apr 22 08:33:40 PDT 2009

 I've used vxml on Voxeo's system and it's really nice to work with. "Underneath" it's tags is Javascript so a FreeSWITCH with a fast TraceMonkey engine and vxml would be great. Your MRCP project would help connect things to other ASR/TTS systems if pocketsphinx isn't good enough. Nice package.



-----Original Message-----
From: Arsen Chaloyan <achaloyan at yahoo.com>
To: freeswitch-users at lists.freeswitch.org
Sent: Wed, 22 Apr 2009 3:15 am
Subject: Re: [Freeswitch-users] VoiceXML

VXML is not only interesting but required concept.
I'm not talking about VXML itself, but presence of specification. I still remember my confusion, when initially thinking about media and call control dialogs and interfaces I found out XML based languages such as VXML and CCXML.
Nevertheless VXML clearly defines media dialogs: entities, state machines and transitions, which is just good.
More over VXML 3.0 is under the way
If you check the authors list, it will be clear this is going to be another standart we should live with.
3.0 is rework of
 2.1 version, added native support of audio/video dialogs, speaker identification/verification.

FreeSWITCH as a platform is almost ready for that, what it is still missing is VXML interpreter itself.


Date: Wed, 22 Apr 2009 09:41:50 +0200
From: "Remko Kloosterman" <R.Kloosterman at mtel.nl>
Subject: Re: [Freeswitch-users] VoiceXML
To: <freeswitch-users at lists.freeswitch.org>
??? <11372C8B9E603F4FACDE6AB18256DEC60170F957 at srvmtel.office.mtel.nl>
Content-Type: text/plain; charset="us-ascii"

I agree that the original commercial model used for VXML gets in the way
of it's own success. It's also focussed way too much on ASR/TTS. I think
we can all agree this technology is still a future promise, even after
10+ years. But technically VXML is an interesting concept, especially
together with related standards like ccxml
The latter supports call transfer and conferencing. Every VoIP and TDM
product I've worked with in the past has it's own application interface
or is bound to an interface that's tailored for a special use (like
pbx). I've
 also used voxeo's callxml, that's implemented with the
CosmoCom ACD product. It's implementation is crappy, but the concept is
nice. The idea of separating callcontrol+media (voice/swithing core) and
application+ivr logic (vxml webserver cgi scripts) sounds rather
appealing to me.
Do you known the name of the free VXML editor/client that's out there?


Van: freeswitch-users-bounces at lists.freeswitch.org
[mailto:freeswitch-users-bounces at lists.freeswitch.org] Namens Anthony
Verzonden: woensdag 22 april 2009 3:58
Aan: freeswitch-users at lists.freeswitch.org
Onderwerp: Re: [Freeswitch-users] VoiceXML

I was initially turned off by VXML when it came out because the first
way they tried to make money off it was to 
sell the clients that let you build the actual xml.? I was not really
motivated to pay money to be able to 
just generate xml just so i could code a free server for it so I lost

I did hear there is now finally a free one out there. so that may make
it a little more reasonable.

I've commented in the past that I'm totally open to supporting VXML but
we have never had the public interest, time or resources
to work on it thus far.

On Tue, Apr 21, 2009 at 6:15 PM, David Knell <dave at 3c.co.uk> wrote:

??? On Tue, 2009-04-21 at 14:35
 -0400, mszlazak at aol.com wrote:
??? > Great Idea.
??? > Try setting up the exact same dialogue with say Voxeo's
??? > system and then with Javascript/Lua and pocketsphinx. It's an
order of
??? > magnitude faster with VoiceXML.
??? Out of interest, is that using some RAD tool or coding directly
??? VoiceXML?? I ask because VoiceXML strikes me as being a bastard
??? abomination of the highest order, whose sole saving grace is
??? it's a standardised bastard abomination.
??? Or is Pocketsphinx the problem?
??? Cheers --

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Anthony Minessale II

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ClueCon http://www.cluecon.com/

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