August 2007
Intermediate to advanced
608 pages
20h 33m
English
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Name
WaitForSilence() — Waits for a specified amount of silence
Synopsis
WaitForSilence(silencerequired[,repeat[,timeout]])
Waits for repeat instances of
silencerequired milliseconds of silence. If
repeat is omitted, the application waits
for a single instance of silencerequired
milliseconds of silence.
If the timeout option is specified,
this application will return to the next priority in the dialplan
after the specified number of seconds, even if silence has not been
detected.
Warning
Please use the timeout with
caution, as it may defeat the purpose of this application, which is
to wait indefinitely until silence is detected on the line. You may
want to set the timeout to a high value only to avoid an infinite
loop in cases where silence is never detected.
This applications sets a channel variable named WAITSTATUS to either SILENCE or TIMEOUT.
; wait for three instances of 300 ms of silence
exten => 123,WaitForSilence(300,3)