Page 248 of 544
Table 85
NTAK03, NTDK20, and NTDK97 µ-Law tones and cadence (Part 4 of 6)
Frequency
Tone #
60
700/1500
61
900/1500
62
1100/1500
63
700/1700
64
900/1700
65
1100/1700
66
1300/1700
67
1500/1700
68
69
70
400 x 50
71
(533 + 666) x 20
72
reserved
73
350/440
74
480/620
75
440/480
76
77
400/450
78
480/620
553-3011-100
Standard 14.00
The TDS/DTR card
dB below
(Hz)
overload
-13/-13
-13/-13
-13/-13
-13/-13
-13/-13
-13/-13
-13/-13
-13/-13
400
400
-23/-23
-15/-15
-15/-15
-15/-15
400
-14/-14
-19/-19
January 2002
Precision
Ringing
Tones
√
-11
√
-14
√
-14
√
√
√
√
√
-25
√
√
DTMF Digits
MF Digits
ST3P/RB/
STP/C12
KP/CR/KP1
ST2P/KP2
ST/CC
7
8
9
C11