There are three different audible volumes to choose from. Depending upon phone type, maximum of 15 to 24 digits can be stored in one memory button. Features such as call forwarding and call park can be programmed into speed dial memory buttons, and can be reprogrammed at any time. First button on top row is prime line that is seized when receiver is picked up. Buttons 2 through 16 need to be depressed to either answer another line in department or to use system features.
Buttons can ring or flash.
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