Unified Messaging represents the convergence of voice mail, e-mail, and fax so that all messages are stored in a single location and can be accessed from a variety of devices, including telephones and PCs Unified Communications (UC) takes Unified Messaging a step further by extending message access to additional devices and technologies, such as mobile phones, pagers, PDAs, and browsers In addition, Unified Communications provides notification features that will alert subscribers in different ways when they receive a message that meets certain criteria.