Table 15 Types and code schemes for ISDN numbers
Field (Bit) value
Protocol
Type
8
7
6
AT&T
Code scheme
5
4
3
2
1
0
0
0
0
0
0
0
1
0
0
1
1
0
1
0
0
1
0
0
0
1
0
0
1
1
1
1
1
83
Definition
Calling number information element
Type—N/A
Code scheme—Unknown
Calling number information element
Type—N/A
Code
scheme—ISDN/telephony
( Recommendation E.164)
Calling number information element
Type—N/A
Code scheme—Data numbering plan ( Recommendation
X.121)
Calling number information element
Type—N/A
Code scheme—Telex numbering plan ( Recommendation
F.69)
Calling number information element
Type—N/A
Code scheme—National standard numbering plan
Calling number information element
Type—N/A
Code scheme—Private numbering plan
Calling number information element
Type—N/A
Code scheme—Reserved for extension
numbering
plan