[Asterisk-Dev] Re: VoiceXML Connectivity for Asterisk

[Steven Critchfield]

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>