In this case I observe
Analog telephone (on ata) is in hold state and the fxo port (previously ata makes ouside call) is open for a long time.
I think, analog telephone makes on-hook
but fxo understand this hook-flash.
I set hook-flash timeout 150 ms under fxo
timing hookflash-out 150
This problem occurs rarely
I want to disable hook-flash, how?