They include, but may not be limited to: Lucent System 75 phones: 510A, 510D, 7101, 7104, 7102A, 7103A, 7302, 7303S, 7305S, 7309, 7401D, 7403D, 7404D, 7405D, 7406D, 7407D, 7410D; System 2600 phones: 200 & 400 Sets; Definity phones: 7406, 7505, 7506, 7507; Genesis phones: 5, 10 & 34 buttons; Merlin 206, 410, 820, 1030, 3020 & 3070: All phone models; Lucent 1A2 phones: 5001/5011 T01A & 6000 phones; Other Lucent Consumer Phones: Elite 320 phone.

This Plantronics cord is required to connect the Plantronics CS10 or CA10 Cordless Amplifier/Headset system, or the Avaya LKA Cordless Headset System to certain models of Lucent Avaya phones.

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