Nortel 1110 Installation And Operation Manual page 259

The rate of arrival of voice frames is variable. The value of jitter is the normal
number of voice frames the application should have in its jitter buffer.
Codec
MVC 2050 supports G.711 which provides higher audio quality with no
compression.
Frame Size
MVC 2050 supports G.711-64 A-law and U-law with 10 ms to 960 ms frame
sizes in 10 ms increments. Optimum and recommended payload is
established as 30 ms frame size.
Listener IP
Use the Listener IP screen to override the port assignments when there is a
conflicting application on the PDA.
See Table 27 for information about selections available on the Listener IP
screen.
Table 27
Listener IP screen
Selection
Use a specific address
Use a specific port
Nortel Mobile Voice Client 2050
Description
MVC 2050 normally listens to all
IP addresses on the device for
communication server-to-terminal
(UNIStim) messaging on all the
network interface cards on the
device. This is the default mode of
operation. To override this
behavior, select the check box and
enter a specific IP address.
MVC 2050 listens to IP port 5000
on the device for communication
server-to-terminal (UNIStim)
messaging.
IP Phones Description, Installation, and Operation
Page 259 of 630