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This phone can be used as a stand alone (wall jack) or it can be plugged into a modem/router which is where I have mine.
Sorry, there was a problem. Please try again later.Hi - The VTech CS5119 is designed to work with regular, cable and VOIP lines. You might need a telephone adapter if you are connecting it on a digital telephone system or a VOIP network. Thank you for your interest! ~VTech Support
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