Nortel Circuit Card Installation Manual page 888

Page 888 of 906
Table 278
NTAK03, NTDK20, and NTDK97 µ-Law tones and cadence (Part 2 of 6)
Frequency
Tone #
19 770/1340
20 770/1480
21 850/1210
22 850/1340
23 850/1480
24 940/1340
25 940/1210
26 940/1480
27 700/1630
28 770/1630
29 850/1630
30 reserved
31 reserved
32 reserved
33
34 [400 x
(120@85%)]
35 940/1630
36 700/1210
37 700/1340
38 700/1480
553-3001-211 Standard 3.00
The TDS/DTR card
dB below
(Hz) overload
-12/-10
-12/-10
-12/-10
-12/-10
-12/-10
-12/-10
-12/-10
-12/-10
-12/-10
-12/-10
-12/-10
400
-17/-15
-17/-15
-17/-15
-17/-15
August 2005
Precision
Ringing
Tones
-19 ÷
-19 ÷
DTMF
Digits MF Digits
5
6
7
8
9
0
*
#
Fo
F
I
P
1
2
3