Page 512 - Asterisk™: The Future of Telephony

settings. The third and final section is where you create one or more groups of voicemail
boxes, each containing the mailbox definitions. For more information on adding voi-
cemail capabilities to your dialplan, see Chapter 6.

General Voicemail Settings

The [general] section of voicemail.conf contains a plethora of options that affect the
entire voicemail system:

format
Lists the codecs that should be used to save voicemail messages. Codecs should be
separated with the pipe character (|). The first format specified is the format used
when attaching a voicemail message to an email. Defaults to wav49|gsm|wav. The
reason that the voicemail might be saved in several different formats is to minimize
the amount of transcoding that Asterisk does when the voicemail is played back.
serveremail
Provides the email address from which voicemail notifications should be sent.
attach
Specifies whether or not Asterisk should attach the voicemail sound file to the
voicemail notification email.
maxmsg
Sets the maximum number of messages that may be kept in any voicemail folder.
maxmessage
Sets the maximum length of a voicemail message, in seconds.
minmessage
Sets the minimum length of a voicemail message, in seconds.
maxgreet
Sets the maximum length of voicemail greetings, in seconds.
skipms
Specifies how many milliseconds to skip forward/back when the user skips forward
or backward during message playback.
maxsilence
Indicates how many seconds of silence to allow before ending the recording.
silencethreshold
Sets the silence threshold (what we consider “silence”—the lower the threshold is,
the more sensitive it is).
maxlogins
Sets the maximum allowed number of failed login attempts.
userscontext
Specifies which voicemail context the mailboxes defined in users.conf should be a
part of. This defaults to the default voicemail context.

484 | Appendix D: Configuration Files