A multi-media messaging system enables a user to select the communication format for communications between the system and the user. This enables the user to direct the system to convert the communication format of a stored message for the user from a first format (e.g. video) to a second format (e.g....http://www.google.com/patents/US5524137?utm_source=gb-gplus-sharePatent US5524137 - Multi-media messaging system
