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Appendix C. Status Buffer Messages
61202.029L2-1 ISU 128 User Manual 103
No Sreg value
Attempt to change an S-register without specifying a value
(example: ATS2= ).
NO_ROUTE
The phone network was unable to find a route to the destination number.
NO_USER_RESPONDING
The dialed number is not responding.
NORMAL_CLEARING
The network is disconnecting the current call.
NOT end2end ISDN
The path that the call was routed over is not ISDN from end-to-end (warning
only).
NUMBER_CHANGED
The number dialed has been changed.
OUTGOING_CALL_BARRED
The network will not allow the outgoing call to be placed.
PROTOCOL_ERROR
Call control error.
REQ_CHANNEL_NOT_AVAIL
The channel type requested is currently not available.
Remote not ISU
Bonding negotiation determined the far-end unit is not another ISU product
(asynchronous rates can only be supported between two ADTRAN ISU prod-
ucts).
RESP_TO_STAT_ENQ
Response to status enquiry.
Ring 1/2
An incoming call on either the first or second channel (third channel if call
waiting) entered the Ring state. The calling phone number is displayed if
available.