Traditional offices have wired telephones tied to their desks. New breed of wireless telephone systems  give users the flexibility of carrying their telephone with them as they walk around the building and even outside. A few telecommunications companies are marketing a single phone that works with both in-house telephone systems and external wide area digital telephone networks. As wireless networks servicing voice and data applications converge with IP networks across the Internet, one can envision a situation where you need to carry only one telephone handset whether you are inside the office or outside the office using the Internet as a long distance carrier. In future, MobileInfo expects Smart phones and some PDAs will be able to communicate with in-house wireless phone systems. Nokia's 9110 Communicator already has basic device capabilities to communicate with external wireless GSM networks.  It does not require tremendous imagination to make it work with internal wireless systems.  

Several vendors provide wireless office phone systems. One such vendor is AGCS - a Lucent subsidiary with their ROAMEO Wireless Office Phone System. 

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