Nortel Circuit Card Installation Manual page 894

Page 894 of 906
Table 279
NTAK03, NTDK20, and NTDK97 A-Law tones and cadences (Part 3 of 9)
Tone # Frequency (Hz)
104 850/1630
105 350/440
106 400/450
107 1400
108
109
110
111 1400
112 1800
113 940/1630
114 700/1210
115 700/1340
116 700/1480
117 770/1210
118 770/1340
119 770/1480
120 850/1210
121 850/1340
122 850/1480
123 940/1340
124 940/1210
553-3001-211 Standard 3.00
The TDS/DTR card
dB below
overload
-13/-12
-17/-17
-17/-17
440
420
950
-12/-10
-12/-10
-12/-10
-12/-10
-12/-10
-12/-10
-12/-10
-12/-10
-12/-10
-12/-10
-12/-10
-12/-10
August 2005
Precision
Ringing
Tones
÷
÷
-26 ÷
-23 ÷
-9 ÷
-12 ÷
-12 ÷
-12 ÷
DTMF
Digits MF Digits
I
P
1
2
3
4
5
6
7
8
9
0
*