[Freeswitch-users] How to check call state in lua script?

[Michael Collins]

Use the eval API:

api = freeswitch.API()
my_uuid = session:getVariable('uuid')
...

state2 = api:executeString('eval uuid:' .. my_uuid .. '
${Channel-Call-State}')
...


The 'eval' API is useful for getting those "magic" variables that show up
when you do the info app or uuid_dump xxx.

-MC

On Wed, Jan 26, 2011 at 7:31 AM, Stephen Wilde <wstephen80 at gmail.com> wrote:

> Hi,
> I have difficult to check the state of an originated session in lua script.
>
> I want to know when the originated session is ringing back or progressing
> or answered.
>
> I have tried with session:getState() but returns always CS_SOFT_EXECUTE.
>
> My lua test script is called from dialplan with a:
>
>         <action application="lua" data="test1.lua"/>
>
>
> And the "test1.lua" script is:
>
>     session2 = freeswitch.Session("sofia/external/xxxxxx at a.b.c.d");
>
>     while (session:ready() and session2:ready()) do
>           state2 = session2:getVariable("channel_call_state");
>           freeswitch.consoleLog("warning", "State2 = " .. state2 .. "\n");
>           session:execute("sleep", "500");
>     end
>
>     if (session:ready()) then
>           session:hangup();
>     end
>
>     if (session2:ready()) then
>           session2:hangup();
>     end
>
> This script fails because the session:getVariable("channel_call_state")
> returns nil.
>
> What is the correct way to know the state of a call?
>
> Stephen
>
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