Cortelco 2705 instruction manual Telephone Service Problems

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TELEPHONE SERVICE PROBLEMS

If you have any problems with your telephone service, determine if the problem is with your unit or the telephone company lines BEFORE CALLING THE TELEPHONE COMPANY. Be aware that the telephone company may charge you for a service call if the problem is caused by your telephone.

TROUBLESHOOTING

PHONE DOES NOT RING

1.Line cord is disconnected at telephone outlet or at telephone.

2.Phone is OFF HOOK. Make certain the hookswitch is depressed when the handset is in the cradle.

3.SPEAKERPHONE indicator is on. Turn off speakerphone.

NO DIAL TONE

Wire is disconnected at telephone or at wall jack. Test the telephone in a different wall jack. If it works, the first jack may be defective.

REDIAL BUTTON DOES NOT FUNCTION

The telephone may have been momentarily disconnected from the telephone jack.

BLANK SCREEN

1.Check if the adapter is connected properly.

2.Press the Contrast button to see if contrast level is set correctly.

CALLERS ARE NOT DISPLAYED ON THE SCREEN

1.Verify that you have subscribed to the appropriate service (Caller ID and Call Waiting Caller ID) from your telephone company. If you only subscribed to Caller ID service the unit will not display call waiting caller ID information.

2.Check if your answering machine is set to answer before 2 rings.

NO CALLER INFORMATION IS DISPLAYED WHEN HEARING THE CALL WAITING BEEP

Verify that you have subscribed to Call Waiting Caller ID service from your tele- phone company.

MESSAGE ERROR HAPPENS FREQUENTLY

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

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

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Contents OWNER’S Caller ID Type Table of Contents Button Important Safety Instructions Page Telephone Part Identification Wall Mount InstallationDesk Mount Answering MachineMessage Waiting Switch Location Operation Wtth Plantronics Wireless HeadsetsPlantronics Headset Base Factory Presets Unit SetupDisplay Setting Page Telephone Features Mute Button Volume ButtonDuration Counter Automatic MemoryPause Button Hold Button Normal ModePBX Mode Flash ButtonRelease Button Data PortContrast Button NEW CallSDT Receiving Calls Caller ID FeaturesCall Waiting Display Reviewing CallsMessage Error CallbackNo Data Sent Finding Items Using the DirectoryStoring Entries Dialing Directory NumbersTelephone Service Problems Maintenance Information Telephone Repair FCC Information Limited Warranty