IBM 412CID, 4900 Handset doesn’t appear to be working, Intercom service doesn’t appear to work

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Handset doesn’t appear to be working.

vCheck to see if your phone is in headset mode. If the [SPKR] key is flashing, you are in headset mode and need to deactivate this in order to turn on the handset.

vMake sure the handset cord is connected at both ends.

Intercom service doesn’t appear to work.

vCheck to make sure the phone lines for all extensions are set up consistently, meaning that all phones are properly wired for [LINE 1], 2, 3 and 4. Review “Connecting Your Telephone Lines” section.

Can’t make phone calls.

vCheck to be sure the phone is set to the correct type of service, either Tone or Pulse.

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Contents Model IBM-412 Advanced HOME/OFFICE Line Telephone Page Table of Contents Intercom FCC Information Equipment NotesImportant Safety Instructions Battery Cautionary Instructions Batteries CautionPackage Contents Getting StartedModel IBM-412 Top View Location of Controls and FeaturesModel IBM-412 Rear View Useful Features and Terms Lights and Cadence Reference List Status IndicationConnecting Your Telephone Lines InstallationInstalling the Batteries Using the Data JackSingle Line Jacks TWO Line JacksCounter TOP/DESK TOP Installation Four Single Line JacksAdjusting the Viewing Angle Brackets Wall MountingWall Mounting Instructions Model IBM-412 Bottom ViewList of System Defaults Telephone Operations SetupAssigning Extension Numbers 11 Through Programming Line Connection ON/OFF Programming Tone or Pulse ModeProgramming Ringer ON/OFF Adjusting Volume Levels Adjusting Ringer VolumeBasic Operations Using Speed DialUsing Last Number Redial Making AN Outgoing CallAnswering AN Incoming Call Using Auto RedialPlacing a Call on Hold Adjusting the Headset Volume Headset InstallationHeadset ENABLE/DISABLE Headset OperationMaking AN Outgoing Call Using the Headset Answering AN Incoming Call Using the HeadsetPlacing an Intercom Call with the Headset IntercomPlacing an Intercom Call with the Handset Placing an Intercom Call with the SpeakerphoneAnswering AN Intercom Call Answering an Intercom Call with the HandsetPaging Telephone Features and Operations Speed Dialing Line PrivacyCall Transfer Storing Numbers into the First Speed Dial GroupErasing First Group Speed Dial Numbers Erasing Second Group Speed Dial NumbersConference Call with an External Party Conference CallingConference Call with an Internal Party Sound Rate of Intercom Buzzer Technical SpecificationsFlash Rate for Lights TonesCare and Maintenance Can’t hear the ring signal on one line only TroubleshootingCan’t hear the ring signal No dial tone/phone will not dial outHandset doesn’t appear to be working Intercom service doesn’t appear to workCan’t make phone calls Limited Warranty Statement Place this Template on the Wall Wall Mounting Template