Yealink EXP20 Expansion Module Device Specs: Display > 160×320 graphic LCD > LCD Backlight > Two accessible pages > A diverse range of actionable, LCD-accessible icons Features Keys and Indicator > 20 physical, dual-color LED programmable keys > 18 additional keys available > Programmable keys enable users to partake in advanced call functions such as: BLF list, multi-person conferencing, call forwarding, LDAP, XML browser functionality 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% # Check Horn Speakers/Megaphones # Check Branded Speakers
