Appendix C: Status Buffer Messages

BUSY

The called number is busy.

CallID 1 in use

ISU 2x64 tried to place a call using SPID 1 when SPID 1 was al- ready in use.

CallID 2 in use

ISU 2x64 tried to place a call using SPID 2 when SPID 2 was al- ready in use.

Call not ringing

User executed an answer command (ATA) but there was not a call present.

CALL_REJECTED

The call has been rejected by the ISDN network.

Can’t go online

ISU 2x64 cannot go back on line. User issued an unknown AT command.

CAP_NOT_IMPLEMENTED

The network or far-end does not support the bearer capability re- quested.

CHAN_DOES_NOT_EXIST

The bearer channel requested is not present.

CHAN_NOT_IMPLEMENTED

The bearer channel requested has not been implemented.

CHANNEL_UNACCEPTABLE

The channel requested has not been subscribed.

CID>0 rcvd

Received an incoming call from a third party during Bonding set- up with far end.

DEST NOT ISDN

The number called is not ISDN (warning only).

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ADTRAN ISU 2X64 user manual Called number is busy