Nortel Networks 1000 User Manual
Page 1003
Features
1003
Table 421
NTAK03, NTDK20, and NTDK97 A-Law tones and cadences (cont’d.)
Tone #
Frequency (Hz)
dB below
overload
Precision
Ringing
Tones
DTMF
Digits
MF Digits
103
770/1630
-13/-12
F0
104
850/1630
-13/-12
I
105
350/440
-17/-17
ч
106
400/450
-17/-17
ч
107
1400
-26
ч
108
440
-23
ч
109
420
-9
ч
110
950
-12
ч
111
1400
-12
ч
112
1800
-12
ч
113
940/1630
-12/-10
P
114
700/1210
-12/-10
1
115
700/1340
-12/-10
2
116
700/1480
-12/-10
3
117
770/1210
-12/-10
4
118
770/1340
-12/-10
5
119
770/1480
-12/-10
6
120
850/1210
-12/-10
7
121
850/1340
-12/-10
8
122
850/1480
-12/-10
9
123
940/1340
-12/-10
0
124
940/1210
-12/-10
*
125
940/1480
-12/-10
#
126
700/1630
-12/-10
F0
127
770/1630
-12/-10
F
128
850/1630
-12/-10
I
129
350/440
-22/-22
ч
130
400
-19
ч
131
400
-25
ч
132
400/450
-22/-22
ч
133
1400
-15
ч
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
02.06
Standard
27 August 2008
Copyright © 2003-2008 Nortel Networks
.