IBM 4900, 412 Troubleshooting, No dial tone/phone will not dial out, Can’t hear the ring signal

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TROUBLESHOOTING

Intercom, line status, auto-answer, privacy or auto-line selection are inoperable.

vCheck if Lines 1 and 2 are cross wired in the wall jack.

vIf used, see if you may have installed your 2-line adapter incorrectly.

vBe sure all extensions in the system are connected to [LINE 1].

vCheck the assigned extension codes, making sure they are unique.

vBe sure the length of cable between stations does not exceed 300 feet.

vCheck that all phone lines are correctly connected to each station (every [LINE 1] is connected to the appropriate line, every [LINE 2] is connected to the appropriate line, and so on.)

vRemove all RFI filters from the system wiring. You may also need to contact your local telephone company to have any RFI filter removed from the company side of the connection.

No dial tone/phone will not dial out.

vCheck that you have plugged the AC power adapter into a working AC power outlet.

vConfirm that the AC power adapter is plugged into the DC jack locates at the unit.

vCheck all telephone cord connections.

vTry another wall jack.

vMake sure the line connection is programmed ON.

Can’t hear the ring signal.

vCheck the ringer volume controls. At lowest level the ring may not be heard.

vCheck the status of DND (Do Not Disturb). Make sure the DND LED is not lit.

Can’t hear the ring signal on one line only.

vCheck the ringer setting on that line.

vSee Programming Ringer ON/OFF.

While on a call do you hear another call on the line or are you experiencing radio frequency interference?

vMake sure all wiring is twisted pair, including modular cords on non-system devices.

vCheck the wiring for bad connections.

Reaching the wrong number in speed dialing.

vCheck that you are accessing the correct dial group (see speed dialing).

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Contents Model IBM-412 Advanced HOME/OFFICE Line Telephone Page Table of Contents Intercom Equipment Notes FCC InformationImportant Safety Instructions Batteries Caution Battery Cautionary InstructionsGetting Started Package ContentsLocation of Controls and Features Model IBM-412 Top ViewModel IBM-412 Rear View Useful Features and Terms Status Indication Lights and Cadence Reference ListInstalling the Batteries InstallationConnecting Your Telephone Lines Using the Data JackTWO Line Jacks Single Line JacksFour Single Line Jacks Counter TOP/DESK TOP InstallationWall Mounting Adjusting the Viewing Angle BracketsModel IBM-412 Bottom View Wall Mounting InstructionsTelephone Operations Setup List of System DefaultsAssigning Extension Numbers 11 Through Programming Tone or Pulse Mode Programming Line Connection ON/OFFProgramming Ringer ON/OFF Adjusting Ringer Volume Adjusting Volume LevelsUsing Last Number Redial Using Speed DialBasic Operations Making AN Outgoing CallUsing Auto Redial Answering AN Incoming CallPlacing a Call on Hold Headset ENABLE/DISABLE Headset InstallationAdjusting the Headset Volume Headset OperationAnswering AN Incoming Call Using the Headset Making AN Outgoing Call Using the HeadsetPlacing an Intercom Call with the Handset IntercomPlacing an Intercom Call with the Headset Placing an Intercom Call with the SpeakerphoneAnswering an Intercom Call with the Handset Answering AN Intercom CallPaging Telephone Features and Operations Call Transfer Line PrivacySpeed Dialing Storing Numbers into the First Speed Dial GroupErasing Second Group Speed Dial Numbers Erasing First Group Speed Dial NumbersConference Calling Conference Call with an External PartyConference Call with an Internal Party Flash Rate for Lights Technical SpecificationsSound Rate of Intercom Buzzer TonesCare and Maintenance Can’t hear the ring signal TroubleshootingCan’t hear the ring signal on one line only No dial tone/phone will not dial outIntercom service doesn’t appear to work Handset doesn’t appear to be workingCan’t make phone calls Limited Warranty Statement Wall Mounting Template Place this Template on the Wall