Cortelco 2203 instruction manual Telephonenumbers

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TELEPHONENUMBERS

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Contents OWNER’S Instructionmanual Page Table of Contents Importantsafetyinstructions Savethese Instructions Telephone Usage SET UP/INSTALLATIONWall Mount Instructions Telephone Part Identification Telephone Features Dataport Flash SwitchHoldbutton FlashbuttonRY/B SpeakervolumePausebutton Message Waiting LampHeadsetcompatible DIP SwitchPosition OFFHave Dial Tone but Cannot Dial OUT TelephoneserviceproblemsPhonedoesnotring No Dial ToneMaintenance Information Telephonerepair FCC Information I, J IndexLimitedwarranty Telephonenumbers