ObsoletedPROPOSED STANDARDLegacy stream

RFC 2422: Toll Quality Voice - 32 kbit/s ADPCM MIME Sub-type Registration

This RFC has been replaced. Do not implement against it for new work — it was formally obsoleted by RFC 3802.

Current document in this lineage: RFC 3801 — Voice Profile for Internet Mail - version 2 (VPIMv2); RFC 3802 — Toll Quality Voice - 32 kbit/s Adaptive Differential Pulse Code Modulation (ADPCM) MIME Sub-type Registration

In plain English — editorial summary, not part of the RFC

This document describes the registration of the MIME sub-type audio/32KADPCM for toll quality audio. [STANDARDS-TRACK]

Document record

Document ID: RFC2422
Published: September 1998
Authors: G. Vaudreuil; G. Parsons
Status: PROPOSED STANDARD
Stream: Legacy
Area: —
Pages: 6
Also known as: —

Obsoletes:: RFC 1911
Obsoleted by:: RFC 3802

Topics

Standards lineage

This document is one revision in a chain of 6 RFCs, each formally replacing the one before it.

Read the full history of Toll Quality Voice - 32 kbit/s Adaptive Differential Pulse Code Modulation (ADPCM) MIME Sub-type Registration →

Referenced by

One later RFC formally updates or obsoletes part of this document.

RFC 3802Toll Quality Voice - 32 kbit/s Adaptive Differential Pulse Code Modulation (ADPCM) MIME Sub-type RegistrationCurrent
June 2004

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About this page

The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

Last checked against the RFC Editor index on 23 August 2026. RFCs are never revised after publication; changes are issued as new documents.

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