3.24	Generic digits (national use)
The format of the generic digits parameter field is shown in Figure 24.


8
7
6
5
4
3
2
1
1
Encoding scheme


Type of digits




2
digits







.








.








.








n
digits







Figure 24/Q.763 - Generic digits parameter
The following codes are used in the subfields of the generic digits parameter:
a)	Encoding scheme
0 0 0
BCD even: (even number of digits)
0 0 1
BCD odd: (odd number of digits)
0 1 0
IA5 character
0 1 1
binary coded

spare
b)	Type of digits
0 0 0 0 0
reserved for account code
0 0 0 0 1
reserved for authorisation code
0 0 0 1 0
reserved for private networking travelling class mark
0 0 0 1 1
reserved for business communication group identity

reserved for national use
1 1 1 1 1
reserved for extension
c)	Digit
Coding in accordance to the coding scheme and type of digits.