GeoLynx Spatial Router
NG9-1-1 Location Validation and Routing

Public safety GIS data plays a critical role in a Next
Generation 9-1-1 (NG9-1-1) system. In i3 NG9-1-1 networks, all
calls are routed based on location. NENA’s i3 Emergency Call Routing Function (ECRF) and the Location Validation
Function (LVF) are core elements for NG9-1-1 call routing and location
validation, and are provisioned with Geographic Information Systems
databases.

GeoLynx Spatial Router determines the correct 9-1-1 PSAP a call should be
routed to based on the location of the calling device. Caller
locations can be geodetic coordinates such as lat/long point, polygon,
circle, ellipse, arcband, or a civic address. The service
information returned includes the service uniform Resource Identifier (URI)
information for the service requested, which indicates which PSAP to route
the call. i3 PSAPs can query the GeoLynx Spatial Router directly using
LoST to obtain emergency service zone information to determine selective
call transfer options for live 9-1-1 calls. Other 9-1-1 elements such
as other ESRPs and ECRFs, LIS, and even calling devices can query GeoLynx
Spatial Router with routing or validation queries, or to discover services.

GeoLynx Spatial Router supports all ECRF/LVF deployment models including
direct (coalesced), indirect (forest guide), and hybrid models. In addition to being fully compliant with existing NENA i3
specifications for Next Generation 9-1-1, GeoLynx Spatial Router can also
provide enhanced geographic intelligence to SIP routing proxies, such as
spatial call cluster detection in the network.
Features
- LoST Compliant (IETF RFC 5222)
- Provides NENA ECRF and LVF i3 functional elements
- Secure web-based UI for administering and altering ad-hoc routing
boundaries
- Built on ESRI ArcGIS Server and
robust RDBMS in a fully scalable and secure design
- Supports load balancing and geographic redundancy
- Optimized for speed with dynamic cache architecture to decrease call setup time
Benefits
- Improves response time by routing calls to PSAPs faster
- Provides more accurate call routing
- Flexible for dynamic call route changes in a few seconds, such as to a virtual PSAP during a public event or large-scale manmade or natural disaster
- Standardizes selective call transfers across ESINets
- Seamlessly integrates with GeoComm’s Family of Products for GIS Data Management
- Available with GIS Service Bureau services from GeoComm to manage GIS data for 9-1-1 call routing
- Integrates with industry leading ESRI ArcGIS Server,
used by city and county enterprises across the US, for GIS
data provisioning to ECRF/LVF.
- Helps fulfill 9-1-1 Authority, ESINet operator, and Communication Service Provider NG9-1-1 roles and responsibilities defined by NENA i3
Press Release
GeoComm, Avaya, 911- Inc., and Synergem collaborate to deliver
fully-integrated i3 solution