RFC 803 · UNKNOWN · 1981
MON · 15 JUN 2026
Dacom 450/500 facsimile data transcoding
Overview
RFC 803, “Dacom 450/500 facsimile data transcoding”, is an Unknown document published in November 1981 by A. Agarwal, M.J. O'Connor, D.L. Mills. The canonical text is published by the RFC Editor.
Abstract
The first part of this RFC describes in detail the Dacom 450 data compression algorithms and is an update and correction to an earlier memorandum. The second part of this RFC describes briefly the Dacom 500 data compression algorithm as used by the INTELPOST electronic-mail network under development by the US Postal Service and several foreign administrators.
What “Unknown” means
The standards-track status of this early RFC was never formally classified.
Read this RFC
The canonical text of RFC 803 is hosted at rfc-editor.org. Available in TXT,HTML.
Other RFCs from 1981
- RFC 802 ARPANET 1822L Host Access Protocol
- RFC 804 CCITT draft recommendation T.4
- RFC 801 NCP/TCP transition plan
- RFC 806 Proposed Federal Information Processing Standard: Specification for message format for computer based message systems
- RFC 799 Internet name domains
- RFC 798 Decoding facsimile data from the Rapicom 450
- RFC 797 Format for Bitmap files
- RFC 796 Address mappings