Hi all!, I'm trying to develop a plugin to sems that allow us to trigger some 
actions on an already stablished call, let me explain ..

During and stablished call throught OpenSer between 2 UAC, we whant to trigger 
some actions when anyone of the UAC's send some DTMF codes.

Just an example:

UAC A -> INVITE -> OpenSer -> Lookup -> t_replay -> UAC B
That stablish the call

Now, UAC A or UAC B press *
UAC A -> SIP INFO -> OpenSer -> trigger * DTMF -> SEMS
On this moment what we want is that SEMS launch and app that will wait for 
other DTMF codes and take some actions aconding to them but also if an 
specific timeout is triggered, the received DTMF should be relayed to UAC B 
throught OpenSer as if they never arrived at SEMS.

We want to do something similar to Attended transfer of Asterisk that is 
triggered when you press *2 during a call, but we do not want to pass all 
calls throught SEMS.

Is this possible?, could we do this workflow with sems without having to send 
all the callflow from the first INVITE throught SEMS ?

-- 
Saludos.

Raúl Alexis Betancor Santana
Dimensión Virtual S.L.
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