September 2005
Intermediate to advanced
408 pages
16h 20m
English
Content preview from Asterisk: The Future of TelephonyBecome 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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Name
Prefix() — Prepends the specified digits to the current extension and goes to the resulting extension
Synopsis
Prefix(digits)Prefixes the current extension with the digit string specified
by digits and continues processing at the
next priority for the new extension. So, for example, if priority 1 of
extension 1212 is Prefix(555), 555
will be prepended to 1212 and the next step executed will be priority
2 of extension 5551212. If you switch into an extension that has no
priority n+1 (where n is the current priority), Asterisk will
treat it as though the user dialed an invalid extension.
Always returns 0.
exten => 1212,1,Prefix(555)
exten => 5551212,2,SayDigits(${EXTEN})See Also
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