3.33	Message compatibility information
The format of the message compatibility information parameter field is shown in Figure 33.

8
7
6
5
4
3
2
1

Instruction indicator







Figure 33/Q.763 - Message compatibility information parameter field

The following codes are used in the subfields of the message compatibility information parameter field:
a)	Instruction indicators
The format of the instruction indicators subfield is shown Figure 34.


8
7
6
5
4
3
2
1
1
ext.1
G
F
E
D
C
B
A

1a
ext.1
More instruction indicators if required








.
.

1n
1
More instruction indicators if required






Figure 34/Q.763 - Instruction indicators subfield
The following codes are used in the instructions indicators subfield:
	bit
A		Transit at intermediate exchange indicator
0		transit interpretation
1		end node interpretation
	bit
B		Release call indicator
0		do not release call
1		release call
	bit
C		Send notification indicator
0		do not send notification
1		send notification
	bit
D		Discard message indicator
0		do not discard message (pass on)
1		discard message
	bit
E		Pass on not possible indicator
0		release call
1		discard information
	bits
G F		Broadband/narrowband interworking indicator
0 0		pass on
0 1		discard message
1 0		release call
1 1		reserved, assume 00
b)	Extension indicator
0		information continues through the next octet
1		last octet
c)	More instruction indicators
	The bits will be defined when required.