TheTDS/DTR card Page253 of 544
Option11C and 11C Mini TechnicalReference Guide
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 √
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
Table 8 6
NTAK03, NTDK20, and NTDK97 A-Law tones and cadences (Part4 of 10)
Tone # Frequency (Hz) dB below
overload
Precision
Ringing
Tones
DTMF Digits MF Digits