PictureTel 3.1 appendix

19

20

21

22

26

27

28

No answer from user (user alerted)

Subscriber absent

Call rejected

Number changed

Non-selected user clearing

Destination out of order

I lid b f t

This cause is used when the called party has been alerted but does not respond with a connect indication within a prescribed period of time. Note: This cause is not necessarily generated by Q.931 procedures but may be generated by internal network timers.

This cause value is used when a mobile station has logged off, radio contact is not obtained with a mobile station or if a personal telecommunication user is temporarily not addressable at any user-network interface.

This cause indicates that the equipment sending this cause does not wish to accept this call, although it could have accepted the call because the equipment sending this cause is neither busy nor incompatible. This cause may also be generated by the network, indicating that the call was cleared due to a supplementary service constraint. The diagnostic field may contain additional information about the supplementary service and reason for rejection.

This cause is returned to a calling party when the called party number indicated by the calling party is no longer assigned, The new called party number may optionally be included in the diagnostic field. If a network does not support this cause, cause no: 1, unallocated (unassigned) number shall be used.

This cause indicates that the user has not been awarded the incoming call.

This cause indicates that the destination indicated by the user cannot be reached because the interface to the destination is not functioning correctly. The term "not functioning correctly" indicates that a signal message was unable to be delivered to the remote party; e.g. a physical layer or data link layer failure at the remote party, or user equipment off-line.

Thi i di t th t th ll d t