Minimal GSTN address format in Internet Mail
RFC 3191, “Minimal GSTN address format in Internet Mail”, is a Draft Standard document published in October 2001 by C. Allocchio. It updates RFC 2846. It obsoletes RFC 2303. The canonical text is published by the RFC Editor.
Abstract
This memo describes a simple method of encoding Global Switched Telephone Network (GSTN) addresses (commonly called "telephone numbers") in the local-part of Internet email addresses, along with an extension mechanism to allow encoding of additional standard attributes needed for email gateways to GSTN-based services. [STANDARDS-TRACK]
What “Draft Standard” means
A historical maturity level (retired in 2011) that sat between Proposed Standard and Internet Standard and required multiple interoperable implementations.
The canonical text of RFC 3191 is hosted at rfc-editor.org. Available in TXT,HTML.
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