¡ïSMT entire automatically installs the primary device (mobile phones, wireless telephone and so on upscale product with same production line) ¡ïImports the ABS plastic, imports the PC material, exclusive recipes, is unique anti- falls guards and against the ultraviolet ray function; ¡ïUses the double color to cast as well as a more advanced laser carves characters, the seepage printing craft, causes the key never to attrition; ¡ïThe specialized design surface version, may print material and so on hotel insignia, telephone use guide, hotel servicing facility,greatly promotes the hotel image; ¡ïOne key connect (+10) ¡ïThe mature lines design of message lamp, is suitable for each kind of model switchboard; ¡ïDTMF dialing ¡ïFlash time adjustable to different exchange and three way talk , standard flash time is 600ms ¡ïElectronic ring melody , Volume two level adjustable , New incoming message LED indicator ¡ïData socket ¡ïthunder-proof and Anti_EMI design