Troubleshooting Features
Issue 5 October 2002
81
555-233-119
Analog Tie Trunk Back-to-Back Testing
The TN760B circuit pack can be configured for back-to-back testing (also known
as connectivity testing) by making translation and cross-connect changes. This
testing configuration allows for the connection of Tie Trunks back-to-back in the
same switch to verify the operation of Tie Trunk ports. The tests can be performed
in either the E & M or simplex modes.
50
Digital milliwatt
51
440 Hz + 480 Hz
52
Music
53
Transmission test sequence 100
54
Transmission test sequence 102
55
Laboratory test tone 1
56
Laboratory test tone 2
57
Disable echo supervision dial tone
58
7 seconds of answer tone
59
4 seconds of answer tone
60
Restore music (or silence)
61
Warning tone
62
Forced music tone
63
Zip tone (first of 2 sent)
64
Incoming call ID (first of 2 sent)
65
Tone on hold
66
CO dial tone
67
Repetitive confirmation tone
68
Conference/bridging tone
Table 6.
System Tone Identification Numbers —
Continued
Number
Description
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