[Freeswitch-users] Dynamic return call (callback)

Michael Jerris mike at jerris.com
Tue May 10 10:26:38 MSD 2016

if the first one works but just calls the parties in reverse, just swap them

On Monday, May 9, 2016, Gabriel Bustos <gabriel at pinaculo.com.br> wrote:

> Hello,
> I'm trying to implement a callback (for specific numbers) in my project.
> What I need to do is hangup the incoming call and return to that number.
> What I tried is this:
> <action application="set" data="api_hangup_hook=originate
> user/${redirect_to} &bridge(gsmopen/ANY/${number})"/>
> Actually this works (sort of), it originates a call in softphone and when
> I answer the softphone the call to destination number is made.
> BUT what I need is to call to destination number and bridge to softphone
> when the call is answered. And here is where I'm having problems.
> My last attempt was calling a lua script who fires a custom event, like
> this:
> <action application="set" data="api_hangup_hook=${lua(websip/teste.lua
> ${caller_id_number})}"/>
> teste.lua:
> function fireEvent()
>     local event = freeswitch.Event("CUSTOM", "Gateway::Callback")
>     event:addHeader("My-Header", "test")
>     event:addBody("EventTest")
>     session:sendEvent(event)
>     --event:fire();
> end
> fireEvent()
> Ok, the event is fired as I can see in CLI but I think the event hook
> doesn't work.
> This is the line from lua.conf:
> <hook envent="CUSTOM" subclass="Gateway::Callback"
> script="testecallback.lua"/>
> Can you help me telling me if I'm the right path or if there's a better
> way to do that?
> Thanks in advance.
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