( provides additional SIP recommendations for dealing with global-numbers.) RFC2806 is ambiguous about whether a local-number needs to include any additional context. The tel: URI telephone-subscriber can be either a global-number or a local-number. This provision is futher complicated by the fact that RFC3261 references RFC2806 which is being revised in a non-backwards compatible way. To accomodate telephone addressing, the SIP specification includes a provision to incorporate a tel: URI telephone-subscriber (everything following the tel: prefix) directly into the user part of a sip: or sips: URI, by setting the "user" parameter to "phone". In this capacity, SIP frequently needs to carry addressing information expressed as strings of digits which may correspond to a telephone number on the Public Switched Telephone Network (PSTN), a private phone number in a private telephone network, and even a string of telephone digits which correspond directly to the digits which are dialed there, which may contain access codes, prefixes, and other locally significant information. SIP frequently interoperates with telephone networks through gateways, and many "IP telephones" implement SIP using a telephone keypad as their primary addressing mechanism. One of the most common applications of SIP is Voice over IP. "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", Intellectual Property and Copyright Statements Representing Locally Significant Strings and NumbersĬonverting locally dialed digits into a valid URI This matter is complicated by the underspecification of the "user" SIP URI parameter in RFC3261 and the phone-context parameter in RFC2806.This document proposes specific semantics for the user=phone parameter and describes several ways to encode digits strings and phone numbers in a manner consistent with that proposal.
URI SIP DEFINITION HOW TO
There is much confusion about how to represent telephone numbers and other related strings of digits in SIP URIs and tel: URIs, especailly when those digit strings are of purely local significance. Copyright NoticeĬopyright (C) The Internet Society (2003). This Internet-Draft will expire on March 31, 2004. The list of Internet-Draft Shadow Directories can be accessed at The list of current Internet-Drafts can be accessed at It is inappropriate to use Internet-Drafts as reference material or to cite Internet-Drafts are draft documents valid for a maximum of six monthsĪnd may be updated, replaced, or obsoleted by other documents at any time. Note that other groups may also distribute working documents as Task Force (IETF), its areas, and its working groups. Internet-Drafts are working documents of the Internet Engineering
URI SIP DEFINITION FULL
This document is an Internet-Draft and is in full conformance with all provisions of Section 10 of RFC2026. Can I issue SIP addresses by creating emails for users? No.Draft-mahy-sipping-user-equals-phone-00.txt Status of this Memo.Like can I just ask two people for their email address and create a sip session.
When user john starts own SIP client, it sends a register message to SIP Proxy server. For example: that there is an account named john on SIP Proxy server (or on SIP Proxy server resolved from ). SIP address (more precisely: SIP URI) looks like an e-mail address but indeed it has totally different meaning.
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