Nortel RLC Installation And Administration Manual page 217

June 2005
Field
Priority
RLC Installation and Administration Guide
Description
Select PSTN Only to allow access only to the PSTN.
PSTN-only ports do not move between networks
according to QoS levels. Meridian digital telephone
sets that place calls to PSTN-only telephone sets when
there is not enough PSTN bandwidth available receive
an error message. In this situation, Bandwidth
Limit displays on the calling digital telephone set.
Note: Calls can be placed to PSTN-only sets if
signaling is over IP but the ISDN is unavailable.
Eventually, Remote Gateway 9100 Series releases the
call and displays a Bandwidth Limit message.
Select High to allow access either to the PSTN or the
IP network based on QoS. Calls through High priority
ports move to the PSTN first in a QoS transition. In
recovery situations, when IP QoS returns to within
configured limits, calls through High priority ports
return to the IP network last, ensuring the most
consistent QoS.
Select Normal to allow access to either the PSTN or
the IP network based on QoS. Calls through Normal
priority ports move to the PSTN only after all calls
through High priority ports make the transition. In
recovery situations, as QoS on the IP network returns to
within configured limits, calls through Normal priority
ports return to the IP network first.
Select IP Only to allow access only to the IP network.
IP-only ports do not move between networks according
to QoS levels.
Configuring the RLC
191