2.19	Facility Accepted message (FAA): A message sent in response to a facility request message indicating that the requested facility has been invoked.
2.22	Facility Request message (FAR): A message sent from an exchange to another exchange to request activation of a facility.

Table 42/Q.763
Message Type:   Facility accepted
        Facility request
Parameter
Reference (subclause)
Type
Length (octets)
Message type
        2.1
F
1
Facility indicator
        3.22
F
1
User-to-user indicators
        3.60
O
3
Call reference (national use)
        3.8
O
7
Connection request
        3.17
O
7-9
Parameter compatibility information
        3.41
O
4-?
End of optional parameters
        3.20
O
1