Star Configuration: Three Systems - Lucent Technologies MERLIN LEGEND Release 6.0 Network Reference Manual

MERLIN LEGEND Communications System Release 6.0
Network Reference 555-660-150
1 Introduction
Tandem Trunking and Tandem Switching
PSTN
Figure 1–5.

Star Configuration: Three Systems

In Figure
modified to bring out some additional possibilities for network configurations.
Consider the following points as you review this graphic:
All three systems enjoy the advantages of tandem PRI trunks, including
MLX telephone display capabilities and high-speed data communications
among networked systems.
System B is a corporate data-processing center with no facilities connected
to the PSTN. It is located in the same building as System A. Outside calls
for System B arrive at System A. All intersystem calls pass through System
A, the hub system.
PRI
ML B
1–5, the 3-system star configuration that we saw earlier has been
PRI
GS
PRI
ML A
PRI
Voice Mail/Auto Attendant
February 1998
Page 1-13
GS
ML C
Voice Mail/Auto Attendant
Issue 1