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If television screens and laptop computer or cell phone displays were made out of plastic , they would weigh less , be more rugged and one day may even be flexible enough to roll up like a projector screen . Still , having an express lane of sorts for some functions gives cell phone designers and software developers a way to use the limited amount of memory inside of cell phones more efficiently . There are plenty of them out there , and finding one should be a matter of a few phone calls . It allows phone designers to change current NOR flash to mass storage of NAND flash without any chipset changes but just in consideration of small modification for their software . Employees at the SWITCH Customer Care Centres answer hundreds of phone calls , e-mails , faxes and letters in English , French , German and Italian every day . And while its Web calling features are catching on among computer users , users must first buy earphones , microphones or special phone handsets to take advantage of cheap phone call features . And in the market for cell phone handsets , three of the four major carriers now carry phones labeled with the Microsoft Pocket PC and Smart Phone brands . Runner-up in this category was mobile-phone company Vodafone , which blocks customers from logging onto adult websites through their phone handsets in order , the company says , to protect mobile-phone-toting , porn-seeking children . In its domestic market , it was one of the first to announce phones that are capable of making use of the fast data service on South Korea 's CDMA2000 1x EV-DO networks and earlier this month launched the first of three video phone handsets for the network . A vast amount of research has been done into mobile phone handsets . The research , from Arias Hung , a security professional with Media Access Guard in Seattle , showed how to control the inner workings of Internet phone routers made by Linksys , which is owned by Cisco Systems Inc. The value of T3 was chosen so that for most normal phone calls , only one INVITE request will be issued . About the phone calls , republicans have been doing that for years but no ones has ever called them on it .