Cortelco 8012 instruction manual Troubleshooting, Phone Does Not Operate

Page 65

Troubleshooting

Phone Does Not Operate

1.Power adapter is disconnected.

2.Line cord is disconnected at telephone outlet or at telephone. Test the tele- phone in a different wall jack. If it works, the first jack may be defective.

3. Batteries are discharged.

4.Batteries are improperly installed.

Blank Screen

1.Batteries are discharged.

2.Batteries are improperly installed.

3.Handset is turned off.

Short Battery Life

1. Base charging contacts are dirty or damaged.

2.Wrong type of batteries used.

3.Batteries may need to be replaced.

65

Image 65

Contents OWNER’S Instruction Manual Contents Page Base BS Settings Multiple Handset Operation Limited Warranty Thank YOU For Purchasing Important Safety Instructions Page Safety Instructions for Handset Battery Pack Page Box Contents Unpacking and InstallationFeatures Telephone Part Identification Page Key Descriptions Navigation Key Icons Page Line and Power Connection InstallationBattery Installation Charging Handset DSL Interference Basic Functions Making a Call Standby ModeMaking a Call Receiving a CallMute Message Waiting Volume ControlRinger Settings EXT Ring Redial Book Last Number RedialRedial Book Options Review Caller ID Records Caller ID FunctionsAdd CID Number to Phone Book Dial from CIDDelete all CID Numbers Delete a CID NumberKey Lock Caller ID on Call WaitingAuto Answer Language Handset Name Range Alarm Paging Dial ModeHandsfree/Speakerphone Backlight FlashMenu Navigation Advanced FeaturesStandby Mode Phone Book Character Map Adding a Phone Book Entry Editing a Phone Book Entry Viewing a Phone Book EntryDialing from a Phone Book Entry Deleting a Phone Book Entry Phonebook Status Deleting all Phone Book EntriesPause Terminate HS Handset Base BS SettingsChange Flash Time Modify PIN BS Base Reset Alarm Handset HS SettingsAudio Setup Key Tone LCD Contrast Base Selection Date and Time Format Setting Date and Time HS Reset Registration Internal Calling Multiple Handset OperationCall Transfer Way Conference Call Telephone Service Problems Maintenance InformationS K Technical SpecificationsPhone Does Not Operate TroubleshootingCallers Are Not Displayed on Screen Telephone Repair Cortelco Repair Center Sawyer Road CORINTH, MS FCC Information Page Limited Warranty Rev