Nortel Networks 553-3001-211 manual 420 X

Page 884 of 894 The TDS/DTR card

Table 274

NTAK03, NTDK20, and NTDK97 A-Law tones and cadences (Part 5 of 9)

			Precision
		dB below	Ringing	DTMF
Tone #	Frequency (Hz)	overload	Tones	Digits	MF Digits
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	÷
159	420	-25	÷
160	420 X 25	-12	÷
161	(553 + 666) X 10	-23	÷
162	(553 + 666) X 20	-23	÷
163	420	-22	÷
164	480	-22	÷
165	330	-11	÷
166	330/440	-11/-14	÷

553-3001-211 Standard 2.00 September 2004