Channel Status - TANDBERG 550 MXP User Manual

D1372102_T550_MXP_User_Manual

3.13.1.2 Channel Status

Comprehensive information about the call progress is available through the Channel Status
window. This window indicates the various stages each B-channel goes through whilst
establishing a connection.
Status - Comments
BRI
Idle the channel is idle
when calling — the network has acknowledged the call
Calling
Connected when connection is established
Sync when the channels are synchronized
Active when all available channels are connected
Releasing waiting for the network to confirm a release of the call
Released when disconnected - the network has acknowledged the disconnection
Cause codes
The most common cause codes (for ISDN) are:
1 Unallocated (unassigned) number
2 No route to specified transit network (WAN)
16 Normal clearing
17 User busy
18 No user responding
21 Call rejected
28 Invalid number format (incomplete number)
29 Facility rejected
31 Normal, unspecified
34 No circuit/channel available
41 Temporary failure
58 Bearer capability not presently available
65 Bearer service not implemented
69 Requested facility not implemented
81 Invalid call reference value
88 Incompatible destination
100 Invalid information element contents
102 Recovery on timer expiry
127 Internetworking, unspecified
255 TANDBERG specific. undefined cause code
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