Lucent Technologies MERLIN LEGEND Release 5.0 Feature Reference page 491

MERLIN LEGEND Communications System Release 5.0
Feature Reference 555-650-110
Features
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.
!
Terminal Equipment Identifier (TEI)
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
Figure 37
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.
CAUTION:
After initial installation, these timers rarely if ever should be changed.
shows the order of call processing for both incoming and outgoing calls;
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Issue 1
June 1997
Page 459
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