Telephone Problems - AT&T MERLIN LEGEND Release 3.1 Maintenance And Troubleshooting Manual

Index
System status
procedure, 4-108
screen, 4-108–4-10
summary, 4-108
System trouble reports, 1-19
T

Telephone problems

analog multiline, 3-4
Call Forwarding, 3-5
CAUTION, 3-1
determining cause, 1-23
general, 3-1–3-2, 3-4
MLX, 3-6–3-8
single line, 3-5
symptom list, 3-2
voice transmission, 3-4
wiring, 3-2–3-4
Test
automatic, 4-101–4-2
B-channel Loopback, 4-75–4-90
board controller, 4-52–4-56
CSU Loopback, 4-92–4-101
Toll fraud
detecting, A-24
preventing, 1-6, A-12, A-14
Top cover
Release 2.1 or later, 5-36–5-37, 5-38
Top cover, Release
2.1 or later, 1-15–1-16
Touch-tone receivers
calculating system requirements,
3-8–3-10
list of modules supplying, 3-10
required by VMS, 3-9
system requirements, 3-10
Transient errors, 2-4
Transient/permanent error threshholds,
2-2
Trouble reports, 1-19
Trunk
busy-out, 5-12–5-16
incoming, 5-4–5-5
maintenance-busy status, 5-8–5-10
manual correction of problems, 5-2–
5-3
outgoing, 5-3–5-4
restoring, 5-20–5-22
symptom list, 5-1–5-2
testing automatically, 5-5
U
Unit loads, 1-26–1-28
Upgrade memory card, inserting, 4-65
Upgrading
power supply, 1-28
V
Voice messaging, failure to transfer, 3-8
Voice transmission, 3-4
W
Warm start, 1-21
Wires, 4-62–4-63
Wiring problems, 3-2–3-4
Maintenance and Troubleshooting
IN–7