RFC 2806 (rfc2806) - Page 1 of 21
URLs for Telephone Calls
Alternative Format: Original Text Document
Network Working Group A. Vaha-Sipila
Request for Comments: 2806 Nokia
Category: Standards Track April 2000
URLs for Telephone Calls
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2000). All Rights Reserved.
Abstract
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 connection types (modes of operation) that can
be used to connect to that entity. This specification covers voice
calls (normal phone calls, answering machines and voice messaging
systems), facsimile (telefax) calls and data calls, both for POTS and
digital/mobile subscribers.
Table of Contents
1. Introduction ................................................ 2
1.1 New URL schemes ............................................ 2
1.2 Formal definitions ......................................... 3
1.3 Requirements ............................................... 3
2. URL schemes for telephone calls ............................. 3
2.1 Applicability .............................................. 3
2.2 "tel" URL scheme ........................................... 4
2.3 "fax" URL scheme ........................................... 6
2.4 "modem" URL scheme ......................................... 6
2.5 Parsing telephone, fax and modem URLs ...................... 7
2.5.1 Call type ................................................ 7
2.5.2 Phone numbers and their scope ............................ 7
2.5.3 Separators in phone numbers .............................. 10
2.5.4 Converting the number to the local numbering scheme ...... 10
2.5.5 Sending post-dial sequence after call setup .............. 10
2.5.6 Pauses in dialing and post-dial sequence ................. 11
2.5.7 ISDN subaddresses ........................................ 11
Vaha-Sipila Standards Track
