Calendaring Interoperability over HTTP (CIH)

Document Type Expired Internet-Draft (calsch WG)
Author Steve Hanna 
Last updated 1997-02-10
Stream IETF
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Calendaring Interoperability over HTTP (CIH) is a technique for exchanging calendaring information between scheduling systems using the Hypertext Transfer Protocol (HTTP). This allows users to schedule meetings with anyone else, no matter what scheduling software they use. This document is a tentative exploration of whether CIH is feasible and what the pros and cons are relative to a brand new protocol like the Calendaring Interoperability Protocol (CIP). The primary benefit of CIH over CIP and motivation for this project is that we avoid implementing a whole new protocol, such as writing and debugging the protocol, convincing vendors to write new code to support it, and then convincing users to deploy it.


Steve Hanna (

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