Cortelco 7150 instruction manual Maintenance Information, Message Error Happens Frequently

MESSAGE ERROR HAPPENS FREQUENTLY

Caller information was not transmitted properly. Check with your telephone company to see if there is a problem with your phone line.

Since our special design will always retain your stored call records, we encourage you to disconnect all the telephone cords and adaptor; and then reinstall the unit step by step per this instruction manual before you ask for service.

SPECIAL NOTE: The call records will not be erased when the adaptor is disconnected. A special E2PROM design allows the unit to always retain your stored call records after you disconnect the adapter

MAINTENANCE INFORMATION

Treat your telephone equipment with care for trouble-free performance. Avoid dropping the handset. Carefully place the handset on-hook after use.

Avoid putting near heating appliances and devices that generate electrical noise (for example, motors and florescent lamps).

Clean your telephone equipment with a damp cloth. Stains may be removed with a mild soap. Do not use liquid or aerosol detergents or cleaning agents.

Do not expose to direct sunlight or moisture

Retain the original package in case you need to ship it at a later date.

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