[Freeswitch-users] preAnswer call at lua script and then bridge it to another leg

[Michael Collins]

The best way to handle this would be to use the bridge application outside
of the Lua script. Go ahead and do the Lua script stuff w/ your database
and then construct your dialstring. Set that to a channel variable, like
"my_dialstring":

session:setVariable('my_dialstring',session_call)

And then let the Lua script exit. Then just add a bridge to your dialplan:

<action application="bridge" data="${my_dialstring}"/>

As a rule of thumb: if you *can* do it in the dialplan then you probably
*should* do it in the dialplan. Use the scripting language for what it's
good at and use the dialplan for what it's good at. Lua is good for logic,
db lookups, and more complicated processing. The dialplan is awesome at
connecting call legs. The bridge app will do all the work for you so you
can focus on more important pursuits.

-MC

On Tue, May 1, 2012 at 8:17 PM, Nikolay Rogoshchenkov
<nickolayr at gmail.com>wrote:

> Hello,
>
> I have a dialplan where I get the incoming call to lua script
>
> <extension name="ext_call">
>  <action application="set" data="hangup_after_bridge=true"/>
>  <action application="set" data="ignore_early_media=false"/>
>  <condition field="destination_number" expression="\d{7,}"/>.
>  <condition field="${sip_from_host}" expression="^(10\.9\.0\.25)$">.
>  <action application ="lua" data="answer.lua"/>.
>  </condition>
> </extension>
>
> and then I have answering in answer.lua:
> ===========================
> session:preAnswer();
>
> [...accessing to DB...]
>
> if (session:ready()) then
>  repeat
>     index = index + 1;
>     session_call =
> string.format("[leg_timeout=30,ignore_early_media=true,hangup_after_bridge=true,origination_caller_id_number="..
> cid .."]sofia/gateway/%s/%s",gwlist[index],dn);
>     legB = freeswitch.Session(session_call);
> until ((hcause == 'USER_BUSY') or (hcause == 'SUCCESS') or (hcause ==
> 'NO_ANSWER') or (index == #gwlist) or(session:ready() == false))
>
> if (legB:ready()) then.
>     freeswitch.bridge(session, legB)
> end
> ===========================
>
> But I have a one problem, when the initial legA was disconnected before
> legB was answered. It it still continued  to call legB (during the
> leg_timeout).
> Could you please explain, how I can cancel legB right after I got
> disconnect on legA in this case? Thank you.
> --
> Nikolay
>
>
>
> _________________________________________________________________________
> Professional FreeSWITCH Consulting Services:
> consulting at freeswitch.org
> http://www.freeswitchsolutions.com
>
> 
> 
>
> Official FreeSWITCH Sites
> http://www.freeswitch.org
> http://wiki.freeswitch.org
> http://www.cluecon.com
>
> FreeSWITCH-users mailing list
> FreeSWITCH-users at lists.freeswitch.org
> http://lists.freeswitch.org/mailman/listinfo/freeswitch-users
> UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users
> http://www.freeswitch.org
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.freeswitch.org/pipermail/freeswitch-users/attachments/20120502/3400e691/attachment.html