Page 880 of 894 The TDS/DTR card
553-3001-211 Standard 2.00 September 2004

Note: Tones #1 - 16 (inclusive) and #234 - 249 (inclusive) are included

for Norwegian and Malaysian specifications.

101 600 -19 ÷
102 800 -19 ÷
103 1400 -23 ÷
104 820 -7
Table 274
NTAK03, NTDK20, and NTDK97 A-Law tones and cadences (Part 1 of 9)
Tone # Frequency (Hz)
dB below
overload
Precision
Ringing
Tones
DTMF
Digits MF Digits
1940 X 1630 -14/-13 P
2700 X 1210 -14/-13 1
3700 X 1340 -14/-13 2
4700 X 1480 -14/-13 3
5770 X 1210 -14/-13 4
6770 X 1340 -14/-13 5
7770 X 1480 -14/-13 6
8850 X 1210 -14/-13 7
9850 X 1340 -14/-13 8
10 850 X 1480 -14/-13 9
11 940 X 1340 -14/-13 0
Table 273
NTAK03, NTDK20, and NTDK97 µ-Law tones and cadence (Part 6 of 6)
Tone #
Frequency
(Hz)
dB below
overload
Precision
Ringing
Tones
DTMF
Digits MF Digits