Cortelco VTAMP1 Headset Amplifier And Interface Module

Deff Audio Verified independent store

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Provides headset interface for phone without a headset jack Adjustable amplification of headset transmit and receive Powered by 12V power supply (included) or 2 AA batteries (optio nal) Headset On/Off button Mute button Headset volume control In-use indicator LED 3 RJ11 ports for headset, telephone handset, and telephone Show more