Cortelco 2750 instruction manual Batteries, Battery Replacement, Power Failure Operation

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9.BATTERIES

Your 2750 telephone uses AC power from a standard wall outlet. As long as the telephone is connected to a wall outlet, it will operate using the AC power. Please remember to plug your telephone into a wall outlet that is not controlled by a wall switch. The 2750 uses 3 AAA batteries for backup power. These batteries fit into a compartment on the base of the telephone.

The display has a battery symbol whenever the batteries are low and need replacing or when no batteries are installed.

9.1.Battery Replacement

a.Make sure the AC cord is attached to the telephone and to a working electrical outlet.

b.Turn the telephone over.

c.Remove desk pedestal/wall mount bracket if attached.

d.Remove battery door cover by using the tip of a ball-point pen, paper clip, or similar object to release the battery door tab.

e.Remove the old battery.

f.Insert 3 new AAA size alkaline batteries. Note that we recommend ONLY alkaline batteries.

g.Close the battery cover.

9.2.Power Failure Operation

If AC power is disconnected or there is a power failure, the telephone automatically switches to battery operation for approximately two hours. When the power is restored, the telephone automatically switches back to AC power and resumes normal operation. If the battery is missing or low on power when AC power is lost, the telephone will not function. However, all feature settings and memory numbers will be maintained.

Note: It is recommended to always have at least one telephone connected that does not require battery power, so that you are always sure to have use of a telephone during a power failure.

45	2750 User Guide Version 1.3

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Contents OWNER’S Instruction Manual Table of Contents Memory Settings Iii User Guide Version Using Your Telephones Answering System Using Stanard Telephones Thank YOU For Purchasing Feature List User Guide Version Important Safety Instructions Box Contents Unpacking and InstallationTelephone Part Identification Installations with Private Lines and Unconnected Lines Identify Your Existing Wiring SystemPlan Your Installation Standard InstallationInstall Batteries Optional Assign a Station NumberConnect Cords to Telephone Station Name Assignment Verify Proper InstallationSystem Programming Station Number AssignmentLine Configuration/Type To Set Connections/Configuration Loop Voltage DetectorTo Set Loop Voltage Detector Ringer Configuration Setting Distinctive RingingTo choose how each line will ring Setting Off-Hook Ringing Intercom Call ResponseTo choose how your phone will respond to intercom calls Toll Restriction To set the system’s toll restriction access codeAutomatic Line Selection To Set Automatic Line SelectionRestricted To completely restrict specific lines at a telephoneSystem Privacy To set the allowed numbers at a particular telephoneTo Change the Privacy Setting Dialing ModeArea Codes Memory Settings To Store the Centrex Prefix Storing a Caller ID number into memoryTo store a personal directory dial number To Store Caller ID RecordsErase Toll Restrictions Erase All Feature SettingsReset Default Settings Erase Numbers Stored in MemoryMiscellaneous Settings Hold Call Reminder Adjusting Auto Hold Drop TimeAdjusting Flash Timer Caller ID on Call Waiting Cidcw SensitivityAnswering System New Message Beep Setting Your Telephones Pickup DelaySetting Toll Saver Changing your OGMSetting Message Length Remote CodeAuto-Attendant Set up the Auto Attendant Record your Auto Attendant Day OGMRecord your Auto Attendant Night OGM Setting Auto Attendant Pickup Delay Night Timer SetRecord your Auto Attendant Zero-Out OGM To record additional Auto Attendant OGM Setting More Than One Phone as an Auto AttendantUsing Additional Auto Attendant OGMs Setting Separate Auto Attendant OGMs for Different LinesLeave a Message at the Auto Attendant All Transfer FeatureTurn Off the Auto Attendant on One or More Lines Choosing the Zero-Out ActionSummary of Auto Attendant Actions Transfer Direct to Voice MailTelephone Operation Outside Call with Intercom Station Answering a call on another lineConference Outside CallsCaller ID Blind TransferTransfer Ring Personal RingRinger Volume LevelsDialing Calls Deleting NumbersIntercom Speaker Accessing MessagesResetting MSG Lamp SpeakerphoneLine Reserve FlashMute Do Not Disturb DNDToll Restriction Removal Single Station Timer Elapsed Call TimeCall Privacy Toll Restriction Removal Single CallDirectory Card Timer ResetElapsed Call Time Previous Calls HeadsetIntercom Voice Intercom while IdleIntercom while on an Outside Call Answering Intercom Calls Intercom RingRoom Monitoring AllAnswering Pages Single Blocking PagesPause Message Playback Using Your Telephones Answering SystemListening to your Messages Play Messages Stop Message Playback Jump back Using Dial Pad Repeat a Message Skip to the next MessageRecording a Telephone Conversation Erasing Messages To Erase a MessageTo Erase All Messages Recording a Memo or ConversationIntercom Using Stanard TelephonesTo Repeat an Auto Attendant OGM Line Status and Calls on HoldBattery Replacement Power Failure OperationBatteries Phone Settings Appendix aMenu Tree ON/OFF Menu Options SUB Menu Default Answer SettingsMemory Settings Time and Date SettingsAdvanced Settings Appendix B Installation WorksheetToll Restriction Worksheet Appendix CAppendix D Trouble Shooting GuideFCC Information Telephone Repair Repair Center Sawyer Road Corinth, Mississippi Limited Warranty