DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Maintenance Object Repair Procedures
9-1813TTR-LEV (TTR Level)
9
TTR-LEV (TTR Level)
TN748 and TN420 Tone Detector circuit packs and TN744 Call Classifier circuit
packs provide tone receivers for detecting various types of signaling tones.
These circuit packs are shared resources that serve all users of the PBX. This
discussion uses the following terms and abbreviations (note that the
maintenance-related system parameters form uses different names than the
alarm and error logs):
TN748s and TN420s each have 4 DTMR-PTs and 2 GPTD-PTs. DTMR-PTs
interpret dual-tone multifrequency (DTMF) calling signals and translate them into
logical digits 0 through 9, *, and #. GPTD-PTs detect call progress tones, modem
answer tones, and transmission test tones.
TN744 Call Classifier circuit packs have 8 CLSFY-PTs. These ports detect DTMF
tones and classify network and MFC (multifrequency compelled) signaling tones.
(That is, CLSFY-PTs can function as DTMR-PTs or GPTD-PTs, and have other
additional capacities).
MO Name (in
Alarm Log)
Alarm
Level
Initial Command
to Run Full Name of MO
TTR-LEV WARNING
1
1. See Repair Procedure for the TTR-LEV below.
TTR Level
TTR-LEV MINOR
1
TTR Level
TTR-LEV MAJOR
1
TTR Level
Type of Tone
Receiver
Maintenance
Object
Also Known
As
Alternate
Abbreviation Location
Dual-tone
Multifrequency
Tone Receiver
DTMR-PT Touch Tone
Receiver
TTR 4 per
TN420/TN748
General
Purpose Tone
Detector
GPTD-PT Call Progress
Tone Receiver
CPTR 2 per
TN420/TN748
Call Classifier CLSFY-PT CCTR 8 per TN744
