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Asterisk: The Future of Telephony
book

Asterisk: The Future of Telephony

by Jim Van Meggelen, Jared Smith, Leif Madsen
September 2005
Intermediate to advanced
408 pages
16h 20m
English
O'Reilly Media, Inc.
Content preview from Asterisk: The Future of Telephony

Name

Playback() — Plays the specified audio file to the caller

Synopsis

    Playback(filename[,options])

Plays back a given filename to the caller. The filename should not contain the file extension, as Asterisk will automatically choose the audio file with the lowest conversion cost. Zero or more options may also be included. The skip option causes the playback of the message to be skipped if the channel is not in the “up” state (i.e., it hasn’t yet been answered). If skip is specified, the application will return immediately should the channel not be off-hook. Otherwise, unless noanswer is specified, the channel will be answered before the sound file is played. (Not all channels support playing messages while still on-hook.) Returns -1 if the channel was hung up. If the file does not exist, jumps to priority n+101 (where n is the current priority), if it exists.

    exten => 123,1,Answer()
    exten => 123,2,Playback(tt-weasels)

See Also

Background()

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Publisher Resources

ISBN: 0596009623Supplemental ContentCatalog PageErrata