RFC 2806: URLs for Telephone Calls

This document specifies URL (Uniform Resource Locator) schemes "tel", "fax" and "modem" for specifying the location of a terminal in the phone network and the…

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Outgoing relationships (10 related RFCs)

Informative reference — RFC 2119: Key words for use in RFCs to Indicate Requirement Levels
Informative reference — RFC 1035: Domain names - implementation and specification
Informative reference — RFC 2234: Augmented BNF for Syntax Specifications: ABNF
Informative reference — RFC 1738: Uniform Resource Locators (URL)
Informative reference — RFC 2396: Uniform Resource Identifiers (URI): Generic Syntax
Informative reference — RFC 2048: Multipurpose Internet Mail Extensions (MIME) Part Four: Registration Procedures
Informative reference — RFC 1866: Hypertext Markup Language - 2.0
Informative reference — RFC 2543: SIP: Session Initiation Protocol
Informative reference — RFC 2303: Minimal PSTN address format in Internet Mail
Informative reference — RFC 2304: Minimal FAX address format in Internet Mail

Incoming relationships (3 related RFCs)

Obsoleted by, Informatively referenced by — RFC 3966: The tel URI for Telephone Numbers
Normatively referenced by — RFC 3261: SIP: Session Initiation Protocol
Informatively referenced by — RFC 3939: Calling Line Identification for Voice Mail Messages