U018Xx Error Code Table: V.34 Reception; U023Xx Error Code Table: Relay Command Abnormal Reception; U044Xx Error Code Table: Encrypted Transmission - Kyocera TASKalfa 2551ci Service Manual

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(2-8) U018XX error code table: V.34 reception

A communication error occurred in phase 2 (line probing).

A communication error occurred in phase 3 (primary channel equivalent device training).

A communication error occurred in phase 4 (modem parameter exchange).

Operation was interrupted due to the absence of a common communication speed

between units.

U01800: A communication error that occurs at the receiver unit in the period after transmission of INFO0

before entering phase 3 (primary channel equivalent device training). For example, INFO0/B/Bbar (A/Abar, for

polling reception)/probing tone was not detected.

U01810: A communication error that occurs at the receiver unit in phase 3 (primary channel equivalent device

For example, S/Sbar/PP/TRN was not detected.

U01820: A communication error that occurs at the receiver unit in the period after initiating the control channel

before entering the T.30 process. For example, PPh/ALT/MPh/E was not detected.

U01821: In the absence of a common communication speed between units (including when an impossible

combination of communication speed and symbol speed occurs) after MPh exchange, a DCN signal was

transmitted to the destination unit and the line was cut.

Timeout was detected before a correct DNL signal was received.

A signal other than MPS or EOM signal was received after a DNL signal was received.

Encrypted transmission was interrupted because encryption keys did not agree.

Calling failed during encrypted transmission because the encryption key was not regis-

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