Consumers and businesses are more mobile than ever, demanding  more wireless access over Wi-Fi hot spots or mobile internet. Business users still rely heavily on their fixed office or home phone. This situation creates duplication of phone numbers, speed dials, contact lists and voice mailboxes.  Opportunities exist for both consumer and business markets to simplify their communications experience through converged services across devices.

Fixed-Mobile Convergence is the term used to describe a wide range of mobile services that converge elements of fixed communications infrastructure to complement the core mobile service.

From the network operators and service providers point of view  the use of FMC services enable them to differentiate themselves even more from the competitors to increase their market share. User‘s benefits from FMC by accessing a wide range of uniform services across fixed and mobile networks.

Using the CallUp IpToo Phone application, mobile subscribers can receive and make calls from their PC or from a PDA - from anywhere in the world - using the same mobile number.