Nortel Networks 1000 - Manual (Page 1006)

1006 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
196 770/1340 -9/-7
197 770/1480 -9/-7
198 850/1210 -9/-7
199 850/1340 -9/-7
200 850/1480 -9/-7
201 940/1340 -9/-7
202 940/1210 -9/-7
203 940/1480 -9/-7
204 700/1630 -9/-7
205 770/1630 -9/-7
206 850/1630 -9/-7
207 420 -10
208 420 -8
209 420 -4
210 1400 -18
211 1400 -9
212 350/420 -9/-9
213 420 -14
214 450 -12
215 450 -22
216 820 -16
217 350/420 -14/-14
218 940/1630 -14/-12
219 700/1210 -14/-12
220 700/1340 -14/-12
221 700/1480 -14/-12
222 770/1210 -14/-12
223 770/1340 -14/-12
224 770/1480 -14/-12
225 850/1210 -14/-12
226 850/1340 -14/-12
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
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