A SERVICE OF

logo

The TDS/DTR card Page 895 of 906
Circuit Card Description and Installation
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 ÷
130 400 -19 ÷
131 400 -25 ÷
132 400/450 -22/-22 ÷
133 1400 -15 ÷
134 950 -19 ÷
135 1400 -20 ÷
136 1800 -20 ÷
137 420 -19 ÷
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
Table 279
NTAK03, NTDK20, and NTDK97 A-Law tones and cadences (Part 4 of 9)
Tone # Frequency (Hz)
dB below
overload
Precision
Ringing
Tones
DTMF
Digits
MF Digits