[Freeswitch-users] Lua outbound executing another lua script

[Michael Collins]

First off, welcome to FreeSWITCH!

I would recommend that you do as much as possible in the dialplan and as
little as possible in Lua. Lua makes things like if/then/else blocks
trivially easy. The XML dialplan makes connecting calls trivially easy. The
sweet spot is to find a nice balance. From what I see in your samples
below, you don't even need the receivewithwhisper.lua on the b-leg. You
could create a very simple dialplan extension that has each of the dp apps
that you are executing in that Lua script. Then your execute_on_answer will
be a transfer to that extension instead of calling Lua.

Maybe something like this...

Modify initiator script:
new_session =
freeswitch.Session("[execute_on_answer=transfer:whisper_answer]sofia/external/12345 at mydest");


Then add an extension:

<extension name="whisper answer">
  <condition field="destination_number" expression="^whisper_answer$">
    <action application="answer"/>
    <action application="playback" data="ConnectingToCaller.wav"/>
    <action application="conference" data="CONFTEST at default+flags{endconf,
moderator}"/>
    <action application="hangup"/>
  </condition>
</extension>

Tinker with that and see what you can get accomplished.

-MC

On Thu, Jul 19, 2012 at 6:18 AM, Alpha Niner <alphaniner at me.com> wrote:

> Hi,
>
> Firstly apologies for the newbie question.  I've tried searching the
> various documentation and trying a few different things but to no avail, so
> I've come here to ask for help.  I think my problem relates to sessions,
> but I'm not totally sure.
>
> What I'm trying to do is:
>
> 1.  A lua script is run by someone calling into FS (the initiator)
> 2.  They select an option, which originates and makes an outbound call to
> another phone number
> 3.  The 3rd party (hopefully) answers their phone and receives a prompt
> that they're going to be connected (the receiver)
> 4.  Both parties join a conference and talk to each other (a conference as
> there may be other parties in future)
>
> To do this I'm creating a session and using execute_on_answer to run the
> second script and provide the prompt to the receiving party.  However the
> receiving party never hears a prompt, comes into the conference,
> immediately drops out and hangs up.
>
> Here are the scripts, they're pretty simple;
>
> The initiator:
>
> session:answer()
> session:streamFile("WaitForOutdial.wav")
> new_session = freeswitch.Session("[execute_on_answer=lua
> /usr/local/freeswitch/scripts/receivewithwhisper.lua]sofia/external/12345 at mydest");
>
> session:execute("conference", "CONFTEST at default+flags{endconf,
> moderator}")
> session:hangup();
>
> The above works fine and the outbound call is placed.  The script below is
> then executed but the receiving phone rings but nothing is heard, the
> conference is joined/exited and it terminates again;
>
>
> The receiver (receivewithwhisper.lua):
>
> session:answer()
> session:streamFile("ConnectingToCaller.wav")
> session:execute("conference", "CONFTEST at default+flags{endconf,
> moderator}")
> session:hangup();
>
> The receiving scripts runs when the receiver answers their phone, and
> executes (quickly) and terminates.  I was expecting it to drop into the
> conference and I'd be able to talk to the other person.  It does join the
> conference, but then exits right away and falls through to the hangup
> section.
>
> As I say, I'm not exactly sure if this is the best way (maybe there's
> another - suggestions are welcome) and not exactly sure what the problem is
> although I suspect it's something to do with the sessions?
>
> Any help, advice, corrections or examples would be appreciated.  It's all
> done in lua and I've tried to avoid session.originate as I understand this
> is deprecated.
>
> Thanks
>
> Adam
>
>
>
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-- 
Michael S Collins
Twitter: @mercutioviz
http://www.FreeSWITCH.org
http://www.ClueCon.com
http://www.OSTAG.org
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