lcd expaion module exp40 the exp40 expaion module for the sip-t46g and sip-t48g, expanding the functional capability of your sip phone to a whole new level. it features a large graphic lcd. two pages of 20 flexible butto are shown on the display can be programmed up to 40 various features, the productivity-enhancing features include blf/bla, speed dialing, call forward, trafer, park, pickup, etc. >< features > an exclusive collection which quality and detailed desig > rich visual experience with 160x320 graphic lcd > 20 physical keys each with a dual-color led > 2 independent control keys are used for fast switch pages > stand with 2 adjustable angles > wall mountable specification display > 160x320 graphic lcd with 16-level grayscales > lcd backlight > two page views are possible > different ico for each function shown on the lcd features keys and indicator > 20 physical keys each with a dual-color led > 20 additional keys through page switch > 2 independent control keys are used for fast switch pages > programmable for shared line, blf list, broadsoft group, call park, conference, forward, group pickup group listening, ldap, pick up, xml browser, zero-sp-touch...... physical feature > wall mountable > stand with 2 adjustable angles > expaion module (≤2) is powered by the host phone > supports up to 6 modules daisy-chain > 2xrj12（6p6c）ports for data in and out > dimeion (w*d*h*t): 127mm*213mm*167mm*45mm > applies to yealink ip phone > operating temperature: -10~50°c > operating humidity: 10-95% package features > qty/ctn: 10 pcs > n.w/ctn: 6.7 kg > g.w/ctn: 7.6 kg > giftbox size: 237mm*154mm*100mm > carton meas: 520mm*317mm*247mm 本产品的品牌是yealink/亿联，型号是exp40，录音功能是无，来电显示是无，可视功能是无，号码储存功能是是，子机数目是其他，接口形式是其他，外形尺寸是127mm*213mm*167mm*45mm（mm），重量是0.67（kg），装箱数是10pcs