A personal communication service in a pervasive office environment using SIP B2BUA on the endpoint

The paper look into the use of a personal smart phone as a main controlling entity for personal communication (using IM, audio or video) in an office environment. The service PPCom (personal pervasive communication) is a kind of `Follow-Me' service. This paper presents the architecture and the design. The architecture is based on a clear separation of `call' and `connection' according to NGN. The solution utilizes some aspects of peer-to-peer communication. This allows the endpoint (a B2BUA) to act as a kind of FMC integrator. The system is implemented and verified in Tandberg R&Ds lab.