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### Instruction:
RS232-3-TTY_NOT_REGISTERED
### Response:
(Severity: 3), (Category: MGBL), (Description: The RS232 DLL tried to perform an operation on a TTY that isn't registered with the TTY Server.), (Recommended Action: If the message recurs, copy the error message exactly as it appears on the console or in the system log, call your Cisco technical support representative and provide the representative with the gathered information.)
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