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New NENA Standards Document on NG9-1-1 Policy Routing Available for 2nd Public Review & Comment

Thursday, March 28, 2013  
Posted by: Chris Nussman
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Due to the number of comments previously received and the quantity of edits and clarification that have been made to this document, NENA Standard for NG9-1-1 Policy Routing Rules, NENA-STA-xxx (DRAFT) has been posted to the NENA collaboration website and is available for a second 15 Business Day Public Review and Comment starting April 1, 2013, and ends on April 19, 2013, at 5PM ET.

All comments shall be submitted by going here and then selecting "add a comment” just above the title "Document Details.” Please complete all requested data and "Save” OR if submitting multiple comments, select "Save and Add Another”.

Any questions or concerns with submitting your comments please contact the NENA Committee Resource Manager.

Executive Overview

An important feature of NG9-1-1 is the ability of the system to adapt to outages, excessive call volumes, emergencies and normal scheduled PSAP outages. The Policy Routing Function (PRF) described in 08-003 is the function that handles the diversion of calls. To support the PRF, Policy Routing Rules (PRRs) must be developed. These PRRs define to where calls are diverted if the target PSAP is unreachable. This Working Group’s charter was to define a template to guide the development of these PRRs. To that end, the committee developed templates to facilitate the PRRs that a 9-1-1 Authority must develop for any new NG9-1-1 System. The minimum set of rules developed must address all call diversion capabilities present in the current E911 system. A 9-1-1 Authority may choose to implement additional and/or enhanced PRRs to divert calls in a manner that takes advantage of capabilities available in a NG9-1-1 system that are not available in E9-1-1 systems.

The template developed is intended to facilitate a discussion between a 9-1-1 Authority and its Emergency Service Routing Proxy (ESRP) vendor. By utilizing the template, PRRs can be described in a way that is understandable by the 9-1-1 Authority and specific enough to be implemented by the vendor.

Without the creation of PRRs, a NG9-1-1 system will not be able to divert calls to an alternative PSAP when the target PSAP is unavailable. Implementation of the PRRs is a necessary step in the deployment of a NG9-1-1 system.


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