An alias can be used to access address book information across multiple communication applications. The alias can also be a screen name, for example, an instant messenger screen name. However, the alias can be used to access more than just instant messenger contact information; it can be used to access...http://www.google.com.hk/patents/US7706832?utm_source=gb-gplus-share專利 US7706832 - Systems and methods for using aliases to manage contact information in a mobile communication device
