Motorola and V.32bis - Manual (Page 109)

Using the AT Automatic Calling Interface 5-17
Using the
AT
A
C
U
S-Register 97—Break Signal Duration
Stored in Nonvolatile Memory?: Yes
Status-Only?: No
Default: 0 (represents 1 second)
Range: 0 - 39
S-Register 97 Value
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
Break Signal Duration (ms.)
1000 (1 second)
26
52
78
104
130
156
182
208
234
260
286
312
338
364
390
416
442
468
494
520
546
572
598
624
650
676
702
728
754
780
806
832
858
884
910
936
962
988
1000