A communications terminal selection unit acquires, upon receipt of a call origination request, presence information including terminal information on terminals available to a call terminator from a presence management unit, and selects a specific terminal, if there are a plurality of terminals available...http://www.google.com/patents/US8046474?utm_source=gb-gplus-sharePatent US8046474 - Method, apparatus, programs and storage medium for transferring data between different types of terminals
