AP72-01 Page 11 Issue 6
S120
Call termination cause
This register will contain the cause value as presented by or to the national network
when a call is cleared.
Common Causes:
3 - no route to destination
16 - normal call clearing
17 - user busy
18 - no user responding
19 - no answer from user
21 - call rejected
22 - number changed
27 - destination out of order
28 - invalid number format
29 - facility rejected
34 - no circuit/channel available
38 - network out of order
41 - temporary failure
47 - resources unavailable
42 - switching equipment congestion
49 - quality of service unavailable
50 - requested facility not subscribed
57 - bearer capability not authorised
58 - bearer capability not available
63 - service or option not available
65 - bearer capability not implemented
66 - channel type not implemented
69 - requested facility not implemented
79 - service or option not implemented
88 - incompatible destination
111 - protocol error, unspecified
S121
Primary B channel outgoing
Default:
0
Range:
0-2
This allows the user to select a specific channel for all outgoing calls.
Parameters:
0 -Any channel
1 -B1 channel only
2 - B2 channel only
