Lucent Technologies MERLIN LEGEND Release 5.0 Feature Reference page 500

MERLIN LEGEND Communications System Release 5.0
Feature Reference 555-650-110
Features
Primary Rate Interface (PRI) and T1
T1 Programming Options
DS1 facilities programmed as T1 lines/trunks can supply many types of
connections. T1 service transmits and receives voice and analog data as well as
digital data in Release 4.0 communications systems. The connections can be to
the Public Switched Telephone Network (PSTN), or they can be tie trunks to other
MERLIN LEGEND Communications Systems or other PBX systems.
T1 Switched 56 channels connected to the PSTN can use routing by dial plan to
send incoming calls to the correct data extension.
T1 Tie Trunk Connections
T1 trunks can be used to supply digital emulated tie-trunk connections. These
trunks can connect two MERLIN LEGEND Communications Systems or one
MERLIN LEGEND Communications System to another type of PBX (for instance,
a Lucent Technologies DEFINITY G1.1 or DEFINITY Enterprise Communications
Server PBX) or the central office with digital (Switched 56 kbps) connections.
Tie trunk settings for these connections are similar to standard analog tie trunks.
The only difference between setting up a digital emulated tie trunk and an analog
tie trunk is that the Signaling Type setting (Type 1 Standard, Type 1 Compatible,
Type 5 Simplex) is not meaningful.
Direction. The tie trunk direction may be programmed in one of the following
ways:
Two-way (factory setting). Calls can be made in both directions.
Outgoing Only. Only outgoing calls can be made.
Incoming Only. Calls can be received only.
Trunk Seizure Type. The trunk seizure type can be one of four settings. The
setting should be compatible with the signaling on the far end. The trunk seizure
type must be set separately for incoming (intype) and outgoing (outtype) calls.
The intype and outtype settings for the trunk seizure type can be programmed as
one of the following settings:
Wink Start (factory setting)
Delay Start
Automatic Start
Immediate Dial
NOTES:
1. The Immediate Dial setting should not be used for DS1 Switched 56
data calls because of the lack of trunk integrity-checking. Auto Route
by Line Appearance works only with Immediate Dial and therefore
cannot be used with DS1 Switched 56 data calls.
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Issue 1
June 1997
Page 468
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