In the event that someone were to accidentally dial a UM - enabled
extension and attempt to leave a voice mail with no audio, the UM server sends a disconnect command
after 5 seconds of no audio input. This is advantageous and helps reduce the number of calls leaving
accidental voice mail. If for some reason the UM administrator wanted to change the idle timeout value,
he would use the -RecordingIdleTimeout parameter with a value that better suited his needs. There
is one other option that is applicable to durations. Maximum call duration sets the amount of time in
minutes that a UM user can have an active session before being disconnected. This setting is for all
activity in a single call. Using UM to read all the email that you missed while taking the summer off to
go backpacking across Europe may require multiple calls because this feature terminates a call once it
has reached the maximum call time. By default this is set to 30 minutes, which should be enough time
for all but the most aggressive UM users to have their email, voice mail, and calendaring notices read to
them. However, if the need arises to modify the timeout value, the MaxCallDuration can be invoked.
A word of caution: modifying this value affects port availability on the IP gateway appliance. If users
stay connected longer, there may be times where there are not enough lines available to accept new
requests.
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