Nortel Circuit Card Installation Manual page 893

Table 279
NTAK03, NTDK20, and NTDK97 A-Law tones and cadences (Part 2 of 9)
Tone # Frequency (Hz)
12 940 X 1210
13 940 X 1480
14 700 X 1630
15 770 X 1630
16 850 X 1630
17 1400
89 940/1630
90 700/1210
91 700/1340
92 700/1480
93 770/1210
94 770/1340
95 770/1480
96 850/1210
97 850/1340
98 850/1480
99 940/1210
100 940/1340
101 940/1480
102 700/1630
103 770/1630
Precision
dB below Ringing
overload Tones
-14/-13
-14/-13
-14/-13
-14/-13
-14/-13
-37
-13/-12
-13/-12
-13/-12
-13/-12
-13/-12
-13/-12
-13/-12
-13/-12
-13/-12
-13/-12
-13/-12
-13/-12
-13/-12
-13/-12
-13/-12
Circuit Card
The TDS/DTR card
DTMF
Digits
*
#
F0
F
I
P
1
2
3
4
5
6
7
8
9
0
*
#
F0
F0
Description and Installation
Page 893 of 906
MF Digits