Demand test descriptions and error codes - Avaya Support

PE-BCHL (PRI Endpoint Port)
● Out-of-Service/Near-End (OOS/NE)
This is the state of the port when a hardware failure exists on the signaling link, the NPE
Crosstalk test fails, or when the port is busied out by command. In this state, the port is
unusable for calls coming into the switch or going out to the terminal adapter, although
other ports in the PRI endpoint can still be used for incoming and outgoing calls. No
messages are sent to the far-end terminal adapter until the signaling link comes back into
service or the port is released by command.
● Maintenance/Far-End (MTC/FE)
This state is reached when the far-end terminal adapter does not respond to messages
sent over the signaling link for a particular port within a certain amount of time. This state is
different from OOS/FE since the signaling link must have initially been up and the
B-Channels in service. The switch will periodically send messages to the far-end terminal
adapter to try to negotiate the port (B-Channel) into service. The port is unusable for
outgoing calls to the terminal adapter but will service incoming call requests from the far
end. Other ports of the PRI endpoint can still to place outgoing calls to the terminal
adapter. Transitions into MTC/FE do not drop stable calls. If the service state changes
from in-service to MTC/FE, stable calls are unaffected.
● Maintenance/Near-End (MTC/NE)
Use busyout, test port l or test pri-endpoint l to busy out the signaling link
(SYS-LINK). Transitions into MTC/NE do not drop stable calls. The busyout link
lnk-no command does not drop stable wideband calls. In this state, the B-Channel is not
usable for new incoming calls to the switch or new outgoing calls to the terminal adapter.
Issue 5 May 2009 711