Can CFD disconnect a specific call/channel prior to another action?

[pmterp]

The client has an on-site paging system connected via a paging server.
All phones have a 1-touch key that allows them to make announcements over the paging system.
Select phones have an "emergency" 1-touch key that initiates a CFD that plays an announcement over the paging system.
They've had an instance where someone initiated a page and did not disconnect. Moments later, a user tried to use the 1-touch key to initiate an emergency announcement but since there was an active call to the paging system already, it did not go through.
Is there a way for the CFD to check if there is a call in progress over that trunk and terminate that call before playing the programmed announcement? Or any other creative solutions?

 

[edossantos]

Unfortunately there is no component to deal with other calls. You can only deal with the call connected to the CFD app.

 

[VoIPTools]

I would propose that you create a Call Flow Designer (CFD) application that prompts the caller for the message, then have the CFD call the paging system. The CFD is multi-threaded so having someone not hang up will not block others from recording their messages. However, because the CFD is multi-threaded, you will need to create a FIFO queue so that each message plays one after another. Just add messages to the list AFTER the caller hangs up.

At this moment, I don't know if there is a way for a CFD application to call an extension (paging system) and play a wav file, but I do know there is a Call Control API that can perform a MakeCall with PlayFile. We built this MakeCallPlayFile API into our Relay, so we could call this API from the CFD.

 

[pmterp]

Unfortunately there is no component to deal with other calls. You can only deal with the call connected to the CFD app.

Thanks for the reply.
Exploring another option: If I set the trunk to only allow 1 call and then add the CFD emergency announcement number as an emergency number that uses that trunk; if a call is in progress and then an "emergency" call is made, will 3CX disconnect the first call to allow the emergency call to use the channel?

 

[edossantos]

I guess you would have to try that, but I don't think that 3CX will drop an existing call in that case.