CASBackwardSignal

  • Base type Enumeration

This textual convention defines all possible Group A, B and C Backward Signal in Signaling System R2. The group-A tones are generally used to query the call setup related information from the outgoing register. The group B signals convey information about the subscriber's line and equipment status. Some countries use the Group-C tones to differentiate between ANI and DNIS related operations with the help to Group-III related tones.

Possible values

46 objects
Number Name
1 notApplicable
2 a1
3 a2
4 a3
5 a4
6 a5
7 a6
8 a7
9 a8
10 a9
11 a10
12 a11
13 a12
14 a13
15 a14
16 a15
17 b1
18 b2
19 b3
20 b4
21 b5
22 b6
23 b7
24 b8
25 b9
26 b10
27 b11
28 b12
29 b13
30 b14
31 b15
32 c1
33 c2
34 c3
35 c4
36 c5
37 c6
38 c7
39 c8
40 c9
41 c10
42 c11
43 c12
44 c13
45 c14
46 c15

Used by

60 objects