Gammu+ is an open source / commercial tool for developers and users, which help in exploring cellular phones functionalities over bluetooth, infrared or cable. Currently supports various Nokia non-Symbian devices. Depending on phone model it can support for example phonebook, sms, mms, calendar, todo, notes, filesystem (make backup / restore using file or PostgreSQL database, send sms, read mms, read / save phone filesystem, upload Java application and more).