[Freeswitch-users] Which method Can I use in IVR

[roberto]

Michael,

For scale reasons is the best choice event socket?

thanks,

On Mon, Jul 27, 2009 at 2:00 PM, Michael Collins<msc at freeswitch.org> wrote:
> See comments inline...
>
> On Sun, Jul 26, 2009 at 10:07 PM, Thangappan.M <thangappan143 at gmail.com>
> wrote:
>>
>> Dear all,
>>
>>  I am learning how to implement a IVR in Freeswitch.In our organization we
>> are using Perl scripting language for doing this.So In freeswitch also I
>> need to use Perl.
>
> Tony, Brian, and I all like Perl. :)
>
>>
>>
>>  So far I heard two methods for executing IVR.
>>         One is in dial plan using perl application.( In perl I create IVR
>> menu and play the voice files)
>>         Another one is using event socket.In dial plan I specified socket
>> application and write a Perl script which is listening that particular port
>> and get the session Id.
>
> Yes, you can call a script from the dialplan using syntax like this:
> <action application="perl" data="/path/to/myivr.pl"/>
>
> OR
>
> You can call an outbound socket connection like this:
> <action application="socket" data="127.0.0.1:8084 async full"/>
>
>>
>> Have I understood correctly?.If it is correct means tell which method can
>> I use?. Other make me understand well.
>
> You're on the right track. As to which method to use, that depends on your
> circumstances. How much does it need to scale? Do you want the IVR "brain"
> to reside physically on a different server than the FS server? Think about
> those things.
>
>>
>>
>> I have seen downloaded perl IVR menu from freeswitch site.In that they
>> called some internal functions like playandGetDigits,StreamFile,ready
>> ...etc.
>>
>> These functions is been called by using $session variable.Where these
>> functions are defined.?
>
> When you call a Perl script from the dialplan the script automatically has
> access to a variable called $session.  Check this for more information:
> http://wiki.freeswitch.org/wiki/Mod_perl#Programming_with_mod_perl
>
> Of course, when using the outbound event socket you will not have this magic
> $session variable. Your best bet to learn more about the socket interface is
> to look at the sample scripts in src/libs/esl/perl/. (server.pl, server2.pl,
> and server3.pl) If you are building an IVR with Perl and the event socket be
> sure to check out src/libs/esl/perl/ESL/IVR.pm which is a small Perl module
> with some simple abstractions to make IVR programming a bit more convenient.
>
> I recommend that you try and create a simple IVR using each method and get a
> feel for how each one works.
>
> -MC
>
>
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