Nortel Networks Circuit Card - Manual (Page 892)

Page 892 of 906 The TDS/DTR card
553-3001-211 Standard 3.00 August 2005
Note: Tones #1 - 16 (inclusive) and #234 - 249 (inclusive) are included
for Norwegian and Malaysian specifications.
101 600 -19 ч
102 800 -19 ч
103 1400 -23 ч
104 820 -7
Table 279
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
1 940 X 1630 -14/-13 P
2 700 X 1210 -14/-13 1
3 700 X 1340 -14/-13 2
4 700 X 1480 -14/-13 3
5 770 X 1210 -14/-13 4
6 770 X 1340 -14/-13 5
7 770 X 1480 -14/-13 6
8 850 X 1210 -14/-13 7
9 850 X 1340 -14/-13 8
10 850 X 1480 -14/-13 9
11 940 X 1340 -14/-13 0
Table 278
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