Nortel Networks 553-3001-211 manual TDS/DTR card Page 881

The TDS/DTR card Page 881 of 894

Table 274

NTAK03, NTDK20, and NTDK97 A-Law tones and cadences (Part 2 of 9)

			Precision
		dB below	Ringing	DTMF
Tone #	Frequency (Hz)	overload	Tones	Digits	MF Digits
12	940 X 1210	-14/-13		*
13	940 X 1480	-14/-13		#
14	700 X 1630	-14/-13		F0
15	770 X 1630	-14/-13		F
16	850 X 1630	-14/-13		I
17	1400	-37
89	940/1630	-13/-12		P
90	700/1210	-13/-12		1
91	700/1340	-13/-12		2
92	700/1480	-13/-12		3
93	770/1210	-13/-12		4
94	770/1340	-13/-12		5
95	770/1480	-13/-12		6
96	850/1210	-13/-12		7
97	850/1340	-13/-12		8
98	850/1480	-13/-12		9
99	940/1210	-13/-12		0
100	940/1340	-13/-12		*
101	940/1480	-13/-12		#
102	700/1630	-13/-12		F0
103	770/1630	-13/-12		F0

Circuit Card Description and Installation