[Asterisk-Dev] Re: VoiceXML Connectivity for Asterisk

Steven Critchfield critch at basesys.com
Wed Dec 3 12:40:08 MST 2003

On Wed, 2003-12-03 at 13:03, Raj Kiran Talusani wrote:
> Thanks for the reply,
> >You mention above that you are using SIP. Why not just use SIP to
> >transport the call to your software? Then there is no code writing
> >needed unless there is SIP interop problems. 
> I have no SIP interoperability problems.
> But suppose in an hypothetical situation , there is an advanced conferencing 
> app. I call into the conference and then invoke the app_voicexml, which will 
> have a dialouge with me and help me to find the phone number of my friend 
> from my online address book. Then i will dialout this number and connect him 
> to the conference. 

I guess in this question, are you dialing a conference? Sounds like what
you list below is not a conference but just a normal call progression.

> I have one more important question here. In asterisk, extentions are a series 
> of applications listed in order. Is it possible tor the application return 
> back some data, that could be used by the next step in that extension??
> example:
> exten => 1234,1,VoiceXML(getphonenum.vxml)
> this voicexml app would have a dialog with the user and gets phone number 
> from the addressbook. Now how does the VoiceXML app return back this number 
> so that it can be used by the next step of this extension to dial out this 
> number .. or something like that

In this case you would have to either pass back data in channel
variables, or possible define a dial number function in the VoiceXML
application that does the appropriate work. You can jump to a new
context, extension, and priority as you leave. Look at the way AGI does
it when you set context, extension, and priority. 

I'm sorry that I don't know voiceXML very well to know if there is
already actions you could take like dial number. If there is, then thats
what you would probably want to do here.

Steven Critchfield  <critch at basesys.com>

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