Nortel DMS-100 Series General Description Manual page 39

Figure 1-20 Distinctive ringing patterns for the C3C ringing type
1
Standard
0.4 s
DRING1 for
0.4 s
MBS sets
DRING1 for
non-MBS
sets
DRING2
DRING3
DRING4
O O n n O O f f f f
DRING5
0.2 s 0.2 s
DRING6
O O n n O O f f f f
DRING7
0.2 s 0.2 s 0.2 s
O O n n O O f f f f
DRING8
0.2 s
1
Teen ringing
Teen ringing, introduced by feature package NTX219, allows up to 4 directory
numbers (DN) to be assigned to one line without the need for additional
equipment at the subscriber's end. Special ringing patterns are used to
distinguish between the called numbers.
0.20 s
1 s
2 3 4 5
O O n n O O f f f f O O n n
0.2 s 0.4 s
O O n n O O f f f f O O n n
0.2 s 0.4 s
O O n n O O f f f f O O n n
0.8 s 0.2 s
O O n n O O f f f f
0.8 s 0.2 s
O O n n
0.6 s
O O n n O O f f f f O O n n O O f f f f
0.8 s 0.2 s
O O n n O O f f f f O O n n O O f f f f
0.4 s 0.2 s 0.2 s
O O n n O O f f f f
0.6 s 0.4 s
O O n n O O f f f f
0.4 s
O O n n
0.2 s 0.6 s
2 3 4 5
DMS-100 Family DMS-100 Ringing System BASE15 and up
3 s
6 7 8 9 10
O O f f f f
2.0 s
O O f f f f
2.0 s
O O f f f f
0.2 s 1.8 s
O O n n
0.8 s
O O f f f f
2.4 s
O O n n
0.2 s 0.2 s 0.4 s
O O n n
0.2 s 0.8 s
O O n n
0.6 s
O O n n
0.6 s
O O f f f f O O n n
0.2 s 0.2 s
6 7 8 9 10
DMS-100 ringing overview 1-23
11
12 13 14
O O f f f f
1.2 s
O O f f f f
1.2 s
O O f f f f
0.8 s
O O f f f f
1.4 s
O O f f f f
1.4 s
O O f f f f
1.6 s
11 12 13 14
15
15