Qualcomm GSP-2900, GSP-2800 manual Ren

Term	Explanation
REN	Ringer equivalency number. A
	number that identifies the
	telephone as being FCC
	approved and ready to be used
	on a telephone network.
RF	Radio frequency
RJ-11 jack	A single line, two-wire
	receptacle for transmitting and
	receiving phone signals.

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