IANA Registration of New Session Initiation Protocol (SIP) Resource-Priority Namespace for Mission Critical Push To Talk Service
RFC 8101
Document | Type |
RFC - Informational
(March 2017; No errata)
Was draft-holmberg-dispatch-mcptt-rp-namespace (individual in art area)
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Authors | Christer Holmberg , Jörgen Axell | ||
Last updated | 2017-03-22 | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | (None) | |
Document shepherd | Roland Jesske | ||
Shepherd write-up | Show (last changed 2016-08-16) | ||
IESG | IESG state | RFC 8101 (Informational) | |
Consensus Boilerplate | Yes | ||
Telechat date | |||
Responsible AD | Ben Campbell | ||
Send notices to | (None) | ||
IANA | IANA review state | Version Changed - Review Needed | |
IANA action state | RFC-Ed-Ack |
Internet Engineering Task Force (IETF) C. Holmberg Request for Comments: 8101 J. Axell Category: Informational Ericsson ISSN: 2070-1721 March 2017 IANA Registration of New Session Initiation Protocol (SIP) Resource-Priority Namespace for Mission Critical Push To Talk Service Abstract This document creates additional Session Initiation Protocol (SIP) Resource-Priority namespaces to meet the requirements of the 3GPP-defined Mission Critical Push To Talk (MCPTT) and places these namespaces in the corresponding IANA registry. Status of This Memo This document is not an Internet Standards Track specification; it is published for informational purposes. This document is a product of the Internet Engineering Task Force (IETF). It represents the consensus of the IETF community. It has received public review and has been approved for publication by the Internet Engineering Steering Group (IESG). Not all documents approved by the IESG are a candidate for any level of Internet Standard; see Section 2 of RFC 7841. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc8101. Copyright Notice Copyright (c) 2017 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Holmberg & Axell Informational [Page 1] RFC 8101 MCPTT R-P Namespace March 2017 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Applicability . . . . . . . . . . . . . . . . . . . . . . . . 3 3. New SIP Resource-Priority Namespaces Created . . . . . . . . 3 3.1. Introduction . . . . . . . . . . . . . . . . . . . . . . 3 3.2. The MCPTT Namespaces . . . . . . . . . . . . . . . . . . 3 4. Security Considerations . . . . . . . . . . . . . . . . . . . 5 5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 5 6. Normative References . . . . . . . . . . . . . . . . . . . . 5 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 6 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 6 1. Introduction The Third Generation Partnership Project (3GPP) has defined a Mission Critical Push To Talk (MCPTT) over LTE service [TS.3GPP.22.179]. The MCPTT service supports an enhanced Push To Talk (PTT) service that is suitable for mission critical scenarios and is based upon 3GPP Evolved Packet System (EPS) services. The requirements for the MCPTT service defined within 3GPP can also form the basis for other PTT services. The MCPTT service is intended to support communication between several users (a group call), where each user can gain permission to talk in an arbitrated manner. However, the MCPTT service also supports private calls between pairs of users. MCPTT is primarily targeted to provide a professional PTT service to, e.g., public safety, transport companies, utilities, and industrial and nuclear plants. In addition to this, a commercial PTT service for non-professional use (e.g., groups of people on holiday) may be delivered through an MCPTT system. Based on their operational model, the performance and MCPTT features in use vary per user organization, where functionality that is more mission-critical-specific (e.g., Imminent Peril Call) might not be available to commercial customers. The MCPTT service provides its users with different priorities for the access to network resources in order to provide means to prioritize between calls when resources are scarce. Among other things, these priorities take into account the priority and role of the caller, the priority and type of the group, and the situation in which the call is made. The SIP-level call control procedures using these namespaces are specified in [TS.3GPP.24.379]. The namespaces defined here will support a wide range of queuing options. The namespaces correspond to what can be supported over the 3GPP Rx interface, defined in Holmberg & Axell Informational [Page 2]Show full document text