Nortel Networks 1000 - Manual (Page 1004)

1004 The TDS/DTR card
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
134 950 -19 ч
135 1400 -20 ч
136 1800 -20 ч
137 420 -19 ч
138 940/1630 -18/-17 P
139 700/1210 -18/-17 1
140 700/1340 -18/-17 2
141 700/1480 -18/-17 3
142 770/1210 -18/-17 4
143 770/1340 -18/-17 5
144 770/1480 -18/-17 6
145 850/1210 -18/-17 7
146 850/1340 -18/-17 ч 8
147 850/1480 -18/-17 ч 9
148 940/1340 -18/-17 ч 0
149 940/1210 -18/-17 ч *
150 940/1480 -18/-17 ч #
151 700/1630 -18/-17 F0
152 770/1630 -18/-17 F
153 850/1630 -18/-17 I
154* (533 + 666) X 10 -23 ÷
155* (533 + 666) X 20 -23 ч
156 400 -12 ч
157 820 -14 ч
158 420 -12 ч
159 420 -25 ч
160 420 X 25 -12 ÷
161* (553 + 666) X 10 -23 ÷
162* (553 + 666) X 20 -23 ч
163 420 -22 ч
164 480 -22 ч
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
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