User Guide
Page 2
... and a mute option • Echo management for VoIP applications • Supports wideband audio >>Please read important Safety Information First WELCOME to the VistaTM M22 universal MODULAR Amplifier from Plantronics® The Vista M22 Universal Modular Amplifier adapts your telephone to work with telephones that have the dial pad in the handset or with cordless telephones.
... and a mute option • Echo management for VoIP applications • Supports wideband audio >>Please read important Safety Information First WELCOME to the VistaTM M22 universal MODULAR Amplifier from Plantronics® The Vista M22 Universal Modular Amplifier adapts your telephone to work with telephones that have the dial pad in the handset or with cordless telephones.