[Freeswitch-users] Incorrect method of PHP call control?

[Greg Thoen]

Thanks for the input.

> You'll have to decide on static vs. dynamic based on your needs. In  
> either case, once the call is connected to your socket you've got  
> all sorts of control options. PHP has an ESL abstraction just like  
> the other languages so there shouldn't be any issue about PHP  
> lacking the ability to control calls.

But I'm having a hard time seeing how the ESL would duplicate this JS  
functionality:

> session.collectInput(onInputsml, "emptyobject", 7000);

How do I set the PHP callback routine, etc.?
--
Greg Thoen



On Aug 31, 2009, at 12:55 PM, Michael Collins wrote:

>
>
> On Mon, Aug 31, 2009 at 8:22 AM, Greg Thoen <gregt at cgicommunications.com 
> > wrote:
> Hi. Before I go to far down this path, I wonder if what I intend to  
> do is not a good practice.
>
> I started using mod_xml_curl to use PHP on localhost to generate a  
> dialplan dynamically, based on the Caller-Destination-Number  
> variable that is posted. It prints out the XML that calls the  
> javascript that then controls the call. For example,
>
> $response = <<< XML
> <?xml version="1.0" encoding="UTF-8" standalone="no"?>
> <document type="freeswitch/xml">
>   <section name="dialplan" description="example_curl_dialplan">
>     <context name="public">
>       <extension name="curl_test">
>         <condition field="destination_number" expression="^(\+1|1?) 
> (5844111)$">
>           <action application="javascript" data="demos/stest-examp- 
> st.js" />
>         </condition>
>       </extension>
>     </context>
>   </section>
> </document>
> XML;
>
> Then I thought, that's silly to go back out to javascript to handle  
> the actions, playing files, using pocketsphinx, etc. I should just  
> stay in PHP, using esl.php to answer and handle the call.
>
> Then I rethought, is that a good practice to take over the call  
> control from freeswitch at that point, while it is in the xml-curl  
> dialplan hunt?
>
> Then I also thought, is it even possible to do some of the things I  
> need to do from the php esl, like the equivalent of this javascript:
> session.collectInput(onInputsml, "emptyobject", 7000);
> --
> Greg Thoen
>
>
> Just remember that you're dealing with two somewhat related but  
> still distinctly separate entities: generating a dialplan and  
> executing some sort of call control from the dialplan. You need some  
> sort of dialplan no matter what, so the issue there is whether you  
> need a dynamic one or not. If you're just going to drop calls to an  
> extension that opens an outbound socket to your call control program  
> then you may not need the dynamic dp generation that mod_xml_curl  
> gives you. You'll have to decide on static vs. dynamic based on your  
> needs. In either case, once the call is connected to your socket  
> you've got all sorts of control options. PHP has an ESL abstraction  
> just like the other languages so there shouldn't be any issue about  
> PHP lacking the ability to control calls.
>
> I say start hacking away at it and see what happens. :) Definitely  
> join us in #freeswitch on irc.freenode.net if you want to discuss  
> this more in realtime.
> -MC
>
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