ANSI SCTE 173-1-2017 pdf free download.Requirements for Preferential Telecommunications over IPCablecom Networks
1.0 SCOPE
The objective of this standard is to provide an initial set of requirements for preferential telecommunications within IPCablecom networks. Aspects of preferential telecommunications include provisions for Authentication and Priority (Special Handling). These requirements do not apply to ordinary emergency calls such as people calling police, fire department, ambulance, etc. This standard defines requirements for capabilities which when implemented should help support emergency telecommunication services. Note: Pre-emption requirements and authorization requirements are outside the scope of this standard and are considered to be national matters.
2.0 DEFINITIONS AND ACRONYMS
Assured capabilities – Capabilities providing high confidence or certainty that critical telecommunications are available and perform reliably. Authentication -The act or method used to verify a claimed identity. Authorization – The act of determining if a particular privilege, such as access to telecommunications resources, can be granted to the presenter of a particular credential. CM – Cable Modem CMS – Call Management Server Emergency situation – A situation, of serious nature, that develops suddenly and unexpectedly. Extensive immediate important efforts, facilitated by telecommunications, may be required to restore a state of normality to avoid further risk to people or property. If this situation escalates, it may become a crisis and/or disaster. International emergency situation – An emergency situation, across international boundaries, that affects more than one country. Label – An identifier occurring within or attached to data elements. In the context of preferential telecommunications it is an indication of priority. This identifier can be used as a mapping mechanism between different network priority levels. MTA -Media Terminal Adapter Off-Net – Not on an IPCablecom Network. On-Net – On an IPCablecom Network. PIN – Personal Identification Number Policy – Rules (or methods) for allocating telecommunications network resources among types of traffic that may be differentiated by labels. Preferential – A capability offering advantage over regular capabilities. Priority treatment capabilities – Capabilities that provide premium access to, and/or use of telecommunications network resources. PSTN – Public Switched Telephone Network
5.0 REQUIREMENTS FOR PREFERENTIAL TELECOMMUNICATIONS IN IPCABLECOM
The following requirements are for authentication and prioritization capabilities within IPCablecom networks. This initial set of requirements can be implemented utilizing existing mechanisms or extensions to existing mechanisms found within IPCablecom and elsewhere. Future enhancements as well as internetworking details will await the work of other ITU-T Study Groups. The requirements focus on call control but some of them might also apply to voice traffic as well. Whether mechanisms need to be developed for the voice traffic as well as the call control depend upon the methods used for the priority and authentication. Ideally, all methods of priority treatment will be applied to a priority call. However, it is recognized that satisfying a subset of the below listed Requirements will improve the access for preferential users and that a phased approach to implementation is desirable.
5.1 Requirements for Authentication in IPCablecom Networks
Users with priority, generally, will be authenticated 1 and authorized. Whether authentication for preferential users is required or not is a national matter. In the case where authentication is not required it is assumed that preferential users are authorized by default. Ideally, at least two authentication mechanisms will be supported in IPCablecom networks. Some services may require only one method, however.
5.1.1 One method of authentication of calls originating in an IPCablecom network will be available to a preferential user on any given IPCablecom user’s equipment. One way this can be accomplished is by calling a special number and entering a personal identification number (PIN).
