| Marketing Information | The 6221 telephone is a single-line analog sets that requires one tip and ring pair for operation. These telephones have 10 programmable dialing buttons, a REDIAL button which allows automatic redial, selected personalized ringing pattern, a Message light, a HOLD button, and a Data jack. The 6221 telephone has a built-in speakerphone (accessed with the SPEAKER button) with Mute capability (the MUTE button). The 6221 telephone allows access to system features with the FLASH button and appropriate dial codes.
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