USER’S GUIDE

Dec Value

Hex Value

Q.931 Cause

 

 

 

19

13

no answer from device (device alerted)

 

 

Indicates that the destination has responded to the connection

 

 

request but has failed to complete the connection within the

 

 

prescribed time. Problem at remote end.

 

 

 

21

15

call rejected

 

 

Indicates that the destination was capable of accepting the call (was

 

 

neither busy nor incompatible) but rejected the call for some reason.

 

 

 

22

16

number changed

 

 

Indicates that the ISDN number used to set up the call is no longer

 

 

assigned to any system. If an alternate address has been assigned to

 

 

the called equipment, this may be returned in the diagnostic field of

 

 

this message.

 

 

 

23

17

reverse charging rejected

 

 

 

24

18

call suspended

 

 

 

25

19

call resumed

 

 

 

26

1A

non-selected device clearing

 

 

Indicates that the destination was capable of accepting the call (was

 

 

neither busy nor incompatible) but rejected the call because it was

 

 

not awarded to the device.

 

 

 

27

1B

destination out of order

 

 

Indicates that the destination could not be reached because the

 

 

interface was not functioning correctly and a signaling message

 

 

could not be delivered for some reason. This may be a temporary

 

 

fault but one that is expected to last a relatively long time. For

 

 

example, equipment off-line.

 

 

 

28

1C

invalid number format (incomplete number)

 

 

Indicates that the connection could not be established because the

 

 

destination address was presented in an unrecognized format or

 

 

because the destination address was incomplete.

 

 

 

29

1D

facility rejected

 

 

Indicates that the facility requested by the device could not be

 

 

provided by the network. This could be a subscription problem.

 

 

 

30

1E

response to STATUS INQUIRY

 

 

Indicates that the status message was generated in direct response to

 

 

the prior receipt of a status enquire message.

 

 

 

31

1F

normal, unspecified

 

 

Reports the occurrence of a normal event when no standard cause

 

 

applies. No action required.

 

 

 

33

21

circuit out of order

 

 

 

630 CyberSWITCH

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Cabletron Systems CSX1000, CSX1200 manual USER’S Guide