Avaya DEFINITY Server CSI Maintenance Manual page 1438

Maintenance Objects
Maintenance/Near-end (MTC/NE)
The port (B-channel) is in this state if the signaling link (PKT-INT) is busied
out by system technician. The port (B-channel) is also temporarily in this
state if the system technician has issued a test port PCSSpp l or a test
pri-endpoint <extension> l command. Note that transitions into MTC/NE
do not drop stable calls. Therefore, a system technician-demanded
busyout link lnk-no command does not drop stable wideband calls. In this
state, the B-channel is not usable either for new calls incoming to the
switch or for new calls outgoing to the terminal adapter.
Pending States (PEND)
If the near-end is expecting a timed response from the far-end for a request
to change the service state of a port, the state of the port reflects a Pending
state. For example, if the port is out-of-service/far-end and if an in-service
message is sent to the far-end, the service state of the port is
OOS/FE-PEND/INS (that is, out-of-service/far-end-Pending/in-service).
The far-end has a certain amount of time to respond to the message. The
service state reflects this pending state until the timer expires.
The following diagram of the PRI Endpoint Port service states shows the common
progression from one service state to another and the event that caused the
change of state.
1438
Issue 5 October 2002