SIP Enabled Services to Support the Hearing Impaired

Document Type Expired Internet-Draft (individual)
Authors Jonathan Rosenberg  , Henning Schulzrinne  , Henry Sinnreich 
Last updated 2000-07-13
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document outlines a set of services enabled by the Session Initiation Protocol (SIP), that allow for access to voice services by people who are hearing impaired. SIP has gained much attention as a tool for voice communications on the Internet. Therefore, considerations for universal access of its services are important. This document does not propose any extensions or new capabilities to SIP, but rather a set of services enabled by it.


Jonathan Rosenberg (
Henning Schulzrinne (
Henry Sinnreich (

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