MERLIN LEGEND Communications System Release 5.0
Feature Reference
555-650-110
Issue 1
June 1997
Features
Page 459
Primary Rate Interface (PRI) and T1
■
T303 Timer. Times the delay in network response when the
communications system sends a setup message to initiate an outgoing
call.
■
T305 Timer. Times the delay in network response when the
communications system sends a disconnect message to clear a call.
■
T308 Timer. Times the delay in network response when the
communications system sends a release message to clear a call.
■
T309 Timer. Times the duration of a D-channel data link failure (a loss of
signaling for the entire PRI connection).
■
T310 Timer. Times the network delay following the receipt of a
call-proceeding message on an outgoing call.
■
T313 Timer. Times the delay in network response when the
communications system sends a connect message that indicates the
completion of an incoming call.
■
T316 Timer. Times the delay in network response when the
communications system sends a restart message to clear a B-channel.
CAUTION:
!
After initial installation, these timers rarely if ever should be changed.
Terminal Equipment Identifier (TEI)
3
1
This option assigns the link layer address of devices connected to each
D-channel. Usually, only one is connected; the network assumes that its TEI is 0.
PRI Call Processing
3
1
shows the order of call processing for both incoming and outgoing calls;
the section of the figure within the box applies specifically to call processing on a
system with PRI. An explanation of incoming and outgoing call processing follows.
