The Calling Party's Category tel URI Parameter

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Last updated 2007-03-07
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document specifies a new parameter for the tel URI that represents the Calling Party's Category, a parameter used in SS7 ISUP and other telephony signaling protocols.


Rohan Mahy (

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