NENA Standards for E9-1-1 Call Congestion Management
document provides a framework for consideration of the various factors
impacting the management of call congestion and traffic engineering for
E9-1-1 networks. A network reference model is provided for use in
referring to generic E9-1-1 network entities. This is followed by a
section that outlines generally accepted industry practices for traffic
engineering for E9-1-1 networks.
This document focuses on the use of trunking capacity
between network entities as the primary means of managing call
congestion. It is acknowledged that enhanced methods of managing call
congestion may be developed that leverage new intelligent network
capabilities. It is also acknowledged that other points within the
various networks involved in delivery of E9-1-1 calls have an impact on
the level of service and call volumes supported, however, these
potential enhancements and other network elements are not within the
scope of this version of this document. This Standard is intended to
provide a guideline for all telecommunications carriers (including local
exchange carriers (LECs), competitive local exchange carriers (CLECs),
commercial mobile radio services (CMRS), satellite carriers, etc),
E9-1-1 network providers, and public safety agencies for how to manage
call congestion in an overall E9-1-1 network.
This document is intended to provide greater parity
between any type of E9-1-1 call, regardless of the source of it’s
origination (wireless, traditional landline, VoIP, PBX/MLTS etc.).
Use of this Standard will:
- Provide greater parity between any type of E9-1-1 call, regardless of the source of it’s origination (wireless, traditional landline, VoIP, PBX/MLTS etc.)
- Establish that it is not only acceptable but necessary to control call congestion to provide a reliable robust E9-1-1 System.