
1-8 DMS-100 ringing overview
297-1001-131 Standard 06.01 October 2000
Harmonic ringing
The following figure illustrates the relationship of the harmonic ringing signals
with the ringing cycle.
Figure 1-5 Harmonic ringing
Note: Available frequencies are 16-2/3, 25, 33-1/3, 50, and 66-2/3 Hz. Any
four of these, in any order, can be assigned to frequencies A through D.
Decimonic ringing
The following figure illustrates the relationship between the decimonic ringing
signals and the ringing cycle.
Figure 1-6 Decimonic ringing
(seenote)
FrequencyA
(1 party)
FrequencyB
FrequencyC
FrequencyD
ANI/coin
02345786101119
(Any available slot)
02345786101119
6s
2255HHzz
3333----11//33HHzz
5500HHzz
6666----22//33HHzz
11..9955ss
11..3355ss
11..3355ss
11..3355ss
(seenote)
FrequencyA
(1 party)
FrequencyB
FrequencyC
FrequencyD
ANI/coin
02345786101119
(Any available slot)
02345786101119
6s
3300HHzz
4400HHzz
5500HHzz
6600HHzz
11..9955ss
11..3355ss
11..3355ss
11..3355ss
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