Table 4/Q.763

Message type

Reference (Table)

Code

Address complete

21

0 0 0 0 0 1 1 0

Answer

22

0 0 0 0 1 0 0 1

Application transport

51

0 1 0 0 0 0 0 1

Blocking

39

0 0 0 1 0 0 1 1

Blocking acknowledgement

39

0 0 0 1 0 1 0 1

Call progress

23

0 0 1 0 1 1 0 0

Circuit group blocking

40

0 0 0 1 1 0 0 0

Circuit group blocking acknowledgement

40

0 0 0 1 1 0 1 0

Circuit group query (national use)

41

0 0 1 0 1 0 1 0

Circuit group query response (national use)

24

0 0 1 0 1 0 1 1

Circuit group reset

41

0 0 0 1 0 1 1 1

Circuit group reset acknowledgement

25

0 0 1 0 1 0 0 1

Circuit group unblocking

40

0 0 0 1 1 0 0 1

Circuit group unblocking acknowledgement

40

0 0 0 1 1 0 1 1

Charge information (national use)

(Note)

0 0 1 1 0 0 0 1

Confusion

26

0 0 1 0 1 1 1 1

Connect

27

0 0 0 0 0 1 1 1

Continuity

28

0 0 0 0 0 1 0 1

Continuity check request

39

0 0 0 1 0 0 0 1

Facility

45

0 0 1 1 0 0 1 1

Facility accepted

42

0 0 1 0 0 0 0 0

Facility reject

29

0 0 1 0 0 0 0 1

Facility request

42

0 0 0 1 1 1 1 1

Forward transfer

37

0 0 0 0 1 0 0 0

Identification request

47

0 0 1 1 0 1 1 0

Identification response

48

0 0 1 1 0 1 1 1

Information (national use)

30

0 0 0 0 0 1 0 0

Information request (national use)

31

0 0 0 0 0 0 1 1

Initial address

32

0 0 0 0 0 0 0 1

Loop back acknowledgement (national use)

39

0 0 1 0 0 1 0 0

Loop prevention

50

0 1 0 0 0 0 0 0

Network resource management

46

0 0 1 1 0 0 1 0

Overload (national use)

39

0 0 1 1 0 0 0 0

Pass-along (national use)

43

0 0 1 0 1 0 0 0

Pre-release information

52

0 1 0 0 0 0 1 0

Release

33

0 0 0 0 1 1 0 0

Release complete

34

0 0 0 1 0 0 0 0

Reset circuit

39

0 0 0 1 0 0 1 0

Resume

38

0 0 0 0 1 1 1 0

Segmentation

49

0 0 1 1 1 0 0 0

Subsequent address

35

0 0 0 0 0 0 1 0

Subsequent Directory Number (national use)

53

0 1 0 0 0 0 1 1

Suspend

38

0 0 0 0 1 1 0 1

Unblocking

39

0 0 0 1 0 1 0 0

Unblocking acknowledgement

39

0 0 0 1 0 1 1 0

Unequipped CIC (national use)

39

0 0 1 0 1 1 1 0

User Part available

44

0 0 1 1 0 1 0 1

User Part test

44

0 0 1 1 0 1 0 0

User-to-user information

36

0 0 1 0 1 1 0 1

Reserved (used in 1984 version)  

0 0 0 0 1 0 1 0
0 0 0 0 1 0 1 1
0 0 0 0 1 1 1 1
0 0 1 0 0 0 1 0
0 0 1 0 0 0 1 1
0 0 1 0 0 1 0 1
0 0 1 0 0 1 1 0

Reserved (used in 1988 version)  

0 0 0 1 1 1 0 1
0 0 0 1 1 1 0 0
0 0 0 1 1 1 1 0
0 0 1 0 0 1 1 1

Reserved (used in B-ISUP)  

0 0 1 1 1 0 0 1

to

0 0 1 1 1 1 0 1

Reserved for future extension  

1 0 0 0 0 0 0 0

NOTE – The format of this message is a national matter.