Page254 of 544 TheTDS/DTR card
553-3011-100 Standard14.00 January 2002
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 √8
147 850/1480 -18/-17 √9
148 940/1340 -18/-17 √0
149 940/1210 -18/-17 √*
150 940/1480 -18/-17 √#
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 √
156 400 -12 √
157 820 -14 √
158 420 -12 √
Table 8 6
NTAK03, NTDK20, and NTDK97 A-Law tones and cadences (Part5 of 10)
Tone # Frequency (Hz) dB below
overload
Precision
Ringing
Tones
DTMF Digits MF Digits