Add support for monitoring MWI on FXO lines.

This introduces two new options for zapata.conf: mwimonitor and mwimonitornotify.
The mwimonitor option enables MWI monitoring.  When the MWI state on a line changes,
then the script specified by mwimonitornotify will be executed for custom handling
of the state change, similar to the externnotify option of voicemail.conf.

Also, when the MWI state on an FXO line changes, an internal Asterisk event is
generated to indicate the new state of the associated mailbox.  That may, any
module that cares about MWI information will get notified and can handle it
just as if app_voicemail had sent this notification.

(BE-253, original patch from markster, with some minor modifications by me to
 add comments, documentation, and internal event support)


git-svn-id: http://svn.digium.com/svn/asterisk/trunk@90949 f38db490-d61c-443f-a65b-d21fe96a405b

1 files changed, 13 insertions, 0 deletions

diff --git a/configs/zapata.conf.sample b/configs/zapata.conf.sample
index c2ee8e454..a8577b610 100644
--- a/configs/zapata.conf.sample
+++ b/configs/zapata.conf.sample
@@ -337,6 +337,19 @@ usecallerid=yes
 ;
 ;hidecallerid=yes
 ;
+; The following option enables receiving MWI on FXO lines.  The default
+; value is no.  When this is enabled, and MWI notification indicates on or off,
+; the script specified by the mwimonitornotify option is executed.
+;
+;mwimonitor=no
+;
+; This option is used in conjunction with mwimonitor.  This will get executed
+; when incoming MWI state changes.  The script is passed 2 arguments.  The
+; first is the corresponding mailbox, and the second is 1 or 0, indicating if
+; there are messages waiting or not.
+;
+;mwimonitornotify=/usr/local/bin/zapnotify.sh
+;
 ; Whether or not to enable call waiting on internal extensions
 ; With this set to 'yes', busy extensions will hear the call-waiting
 ; tone, and can use hook-flash to switch between callers. The Dial()