Nortel Networks Circuit Card 311 User Manual
Page 1121
Features
1121
Tone #
Frequency
(Hz)
dB below
overload
Precision
Ringing
Tones
DTMF
Digits
MF Digits
83*
reserved
84
350/440
-17/-17
ч
85
400/450
-17/-17
ч
86
400
-17
ч
87
1400
-26
ч
88
950
-12
ч
89
1400
-12
ч
90
1800
-12
ч
91
470
0
ч
92
940
0
ч
93
1300
0
ч
94
1500
0
ч
95
1880
0
ч
96
350/440
-10/-10
97*
TBD
98*
TBD
99*
TBD
100*
TBD
101
600
-19
ч
102
800
-19
ч
103
1400
-23
ч
104
820
-7
Note: Tones #1 - 16 (inclusive) and #234 - 249 (inclusive) are included
for Norwegian and Malaysian specifications.
Tones marked with * are not supported by IP sets and therefore should
not be selected in any system that has IP sets.
Table 458
NTAK03, NTDK20, and NTDK97 A-Law tones and cadences
Tone #
Frequency (Hz)
dB below
overload
Precision
Ringing
Tones
DTMF
Digits
MF Digits
1
940 X 1630
-14/-13
P
2
700 X 1210
-14/-13
1
Nortel Communication Server 1000
Circuit Card Reference
NN43001-311
01.04
Standard
Release 5.0
23 May 2008
Copyright © 2003-2008, Nortel Networks
.