[Freeswitch-users] How to delay setInputCallback() while playing audio?

I am running an IVR which collects DTMF input while the file is being played, written in Lua. I set InputCallback and then listen for DTMF events. If event found, take actions etc. session:setInputCallback("eventHandler") playbackMessage (playback_delay) Facing a strange issues with Verizon where they send a quick RTP Event write after starting the audio, which triggers the DTMF event and bad things happen in my script. This only happens within first 1 to 2 seconds of RTP. How can I have my InputCallback listen for events only after a few seconds while still playing the audio? or do I have to switch to playAndGetDigits() ? -- Sent with Airmail