User manual

Release 2.0 Digium, Inc. Page 38
Chapter 3: Configuration
http://www.digium.com/en/products/software/hpec.php
When HPEC is enabled, users may set the value of the echocancel
parameter to any of the following values:
128 - 16ms
256 - 32ms
512 - 64ms
1024 - 128ms
Note: Higher values will result in dramatically increased CPU
consumption. In order to optimize system performance, users are
encouraged to choose the minimum value required to cancel their
echo.
Voicemail
Open
voicemail.conf and find the following line at the bottom:
[default]
1234 => 4242,Mark Spencer,root@localhost
In this example, 1234 is the mailbox number, 4242 is the password, Mark
Spencer
is the person’s name, and root@localhost is his email address.
You can add extensions by adding the following:
1000 => 1234,Moose Member,[e-mail]
2000 => 1234,Bill Savage,[e-mail]