CounterPath Bria Android Edition 1.1 User Guide (Revision 7) - Manual (Page 30)

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UDP Keep Alive - Wi-Fi
Interval A “keep alive” message is a mechanism for maintaining a “pinhole” through your firewall so that
phone calls proceed smoothly. The interval specifies how often the message is sent (in seconds).
If you are experiencing problems during a Wi-Fi call (a call made over the Wi-Fi internet
connection), try setting this interval to a lower number such as 20.
UDP Keep Alive - 3G
Interval Same as above, except the interval applies to calls made over the 3G network.
Field Description