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Appendix C. Status Buffer Messages
61202.029L2-1 ISU 128 User Manual 105
TXFA1 expired
Bonding timer TXFA1 expired, other vendors BONDING equipment did not
operate properly.
TXFA2 expired
Bonding timer TXFA1 expired, other vendors BONDING equipment did not
operate properly.
TX FLOW ERROR
Flow control needs to be enabled.
TXINIT expired
Bonding timer TXINIT expired, called non-BONDING equipment.
UNASSIGNED_NUMBER
The phone number dialed does not exist.
Unknown AT & cmd
User issued an unknown AT command.
UNSPECIFIED_CAUSE
Received a cause message from the network that is not understood.
Unsupported baud
The ISU 128 does not support the negotiated baud rate.
USER_BUSY
The dialed number is busy.
V120 timeout
The far-end unit is not set up for V.120.
V120 connected
The V.120 rate adaption successfully connected to the far-end unit.
WRONG_MESSAGE
Call control error.
WRONG_MSG_FOR_STATE
Call control error.