Nortel Networks 1000 - Manual (Page 1007)

Features 1007
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
227 850/1480 -14/-12
228 940/1340 -14/-12
229 940/1210 -14/-12
230 940/1480 -14/-12
231 700/1630 -14/-12
232 770/1630 -14/-12
233 850/1630 -14/-12
234 940 X 1630 -17/-15 p
235 700 X 1210 -17/-15 1
236 700 X 1340 -17/-15 2
237 700 X 1480 -17/-15 3
238 770 X 1210 -17/-15 4
239 770 X 1340 -17/-15 5
240 770 X 1480 -17/-15 6
241 850 X 1210 -17/-15 7
Note: Tones marked with * are not supported by IP sets and therefore
should not be selected in any system that has IP sets.
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311 02.06 Standard
27 August 2008
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