4.5.18	Keypad facility
The purpose of the Keypad facility information element is to convey IA5 characters, e.g. entered by means of a terminal keypad.
The Keypad facility information element is coded as shown in Figure 4-24.
The maximum length of this information element is 34 octets.


8
7
6
5
4
3
2
1
Octets
Keypad facility
0
0
1
0
1
1
0
0
1
Information element identifier
Length of the keypad facility contents
2
0
Keypad facility information (IA5 characters)
3
etc.
FIGURE  4-24/Q.931
Keypad facility information element