EXP20 High-Performance LCD Expansion Module The Yealink EXP20 is the next iteration of the company’s flexible and powerful SIP-T27G, SIP-T27P and SIP-T29G advanced IP phone models. The Expansion module contains a large and user-friendly liquid crystal display (LCD) interface that measures 160×320 pixels, as well as contains 20 physical, dual-color LED keys. The additional screen space and added number of buttons simplifies user navigation and streamlines essential operational functions such as speed dial, BLF, BLA, call forwarding, transfer and hold. Up to six EXP20 phone systems can be strung together on a single daisy chain. Physical Feature Stand with two adjustable angles Two or less expansion modules can be powered by the host phone> Supports up to six modules 2xRJ12（6P6C）ports for data in and out Dimension (W*D*H*T): 122mm*143mm*110mm*45mm Applies to Yealink SIP-T27G/SIP-T27P/ SIP-T29G Operating temperature: -10~50°C ( 14~122 °F) Operating humidity: 10%-95%
