September 2005
Intermediate to advanced
408 pages
16h 20m
English
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Name
WaitForRing() — Waits the specified number of seconds for a ring
Synopsis
WaitForRing(timeout)Waits at least timeout seconds after
the next ring has completed.
Returns 0 on success or
-1 on hangup.
; wait five seconds for a ring, and then send some DTMF digits
exten => 123,1,Answer()
exten => 123,2,WaitForRing(5)
exten => 123,3,SendDTMF(1234)Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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