I have TDM2400 with FXO ports. It takes about 3 seconds for Asterisk before it starts executing dialplan on incoming call. If sees the ring almost instantly:
[Jun 7 21:58:30] NOTICE: chan_zap.c:6364 ss_thread: Got event 18 (Ring Begin)…
[Jun 7 21:58:30] NOTICE: chan_zap.c:6364 ss_thread: Got event 2 (Ring/Answered)…
but then it takes 1-2 rings before dislplan execution begins.
Is there an option specifying how long to wait before picking up the line?