Nortel RLC Installation And Administration Manual page 218

Configuring the RLC
Field
G.729 During QoS
Transition
Cordless Support
192
Description
Enabling this setting minimizes the number of PSTN
trunks required for QoS transition situations. It is only
active when the configured compression rate is G.711 or
G.726.
Click on the Enable option button if you want to allow
the RLC and the Remote Gateway 9150 unit unit to
change configured G.711 or G.726 compression
algorithms during QoS transitions on this port.
Click on the Disable option button if you do not want
to allow compression algorithm changes during QoS
transitions on this port.
Note: You must disable this option if the system or port is
configured as PSTN only. If you do not disable this option,
the system does not allow PSTN-only ports to use
compression algorithms other than G.729A.
RLC ports allow you to use either corded telephones or
cordless telephones.
Click on the Enable option button if you want this port
to provide service only to cordless telephones, such as
M2616CT.
Click on the Disable option button if you want this port
to provide service only to corded telephones, such as
M2616.
Note: Misconfiguration of this field causes incorrect
remote telephone operation.
RLC Installation and Administration Guide
Standard 4.0