Internet Unified Messaging Requirements to Support Diverse Clients

Document Type Expired Internet-Draft (individual)
Authors Eric Burger  , Glenn Parsons  , Gregory Vaudreuil 
Last updated 2003-03-06
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


The goal of Internet Unified Messaging is to provide, over the Internet, a single infrastructure, mailbox, and set of interfaces for a user to get, respond to, and manipulate all of his or her messages from a collection of clients with varying capabilities, no matter what the media or source is. Towards this goal, this document considers what is required of Internet messaging protocols to enable the support of Unified Messaging on two new classes of limited capability messaging clients: those limited to having a telephone user interface (TUI) and those that can be supported by small hand-held wireless devices with simple displays such as cell phones with data features and wireless-enabled PDAs (WUI). Included in the discussion is also a list of general principles to guide the design of Unified Messaging protocols. Discussion of this and related drafts are on the UM list. To subscribe, send the message 'subscribe um' to The public archive is at


Eric Burger (
Glenn Parsons (
Gregory Vaudreuil (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)