Meridian Nortel 1 Option 11C Technical Reference Manual page 249

Table 85
NTAK03, NTDK20, and NTDK97 µ-Law tones and cadence (Part 5 of 6)
Frequency
Tone #
79 440/480
80
81
82
83 reserved
84 350/440
85 400/450
86
87 1400
88
89 1400
90 1800
91
92
93 1300
94 1500
95 1880
96 350/440
97
dB below
(Hz) overload
-19/-19
480
420
440
-17/-17
-17/-17
400
950
470
940
-10/-10
TBD
The TDS/DTR card
Precision
Ringing
Tones
√
√
-19
√
-9
√
-29
√
√
√
-17
√
-26
√
-12
√
-12
√
-12
√
0
√
0
√
0
√
0
√
0
Option 11C and 11C Mini
Page 249 of 544
DTMF Digits MF Digits
Technical Reference Guide