IP Selective Router

Many legacy Selective Router (SR) platforms are reaching end of life. 

IP Selective Router

Comtech’s Internet Protocol (IP) SR (IPSR), an IP-based replacement for legacy SRs, seamlessly enables migration to full Next Generation 9‑1‑1 (NG9‑1‑1) capabilities.

Don’t get left behind. Learn more about Comtech’s support and migration solutions today.

Product Details

The IPSR delivers calls to legacy and NG9‑1‑1 public safety answering points (PSAPs). It routes calls based upon geospatial data, ensuring that all current and future call types are routed to the appropriate PSAP.

Methods include traditional SR tables, Dialed Number Identification Service (DNIS), Geographic Information System (GIS), and a hybrid configuration of Automatic Location Identification (ALI) and SR tables.

Highly redundant and scalable, the Comtech IPSR supports location by value (LbyV), location by reference (LbyR), traditional ALI lookup, and ALI steering.

Industry Compliance

  • National Emergency Number Association (NENA): NENA i3
  • Alliance for Telecommunications Industry Solutions (ATIS): JTD‑110, IMSESINET, NGES, IMS911, ELOC, ESIF
  • Internet Engineering Task Force (IETF): SIPCORE, ECRIT, SIPREC, GEOPRIV

Features & Benefits

Key FeatureBenefit
Active-Active DesignHighest availability with no manual interaction required.
Geographic RedundancyAlways deployed with geographic redundancy, increasing availability. 
CPE InteroperabilitySuccessfully deployed with a variety of customer premises equipment (CPE) applications.
MSRP Text to 9-1-1 SupportEnables native MSRP Text to 9-1-1. Functions as a text-only ESInet to provide states with an aggregation and MSRP distribution point.
Proven NENA i3 FlexibilitySuccessfully deployed using other NENA i3-compliant components within the solution
Multiple Deployment ModelsCan be deployed in a dedicated in-market solution, as a Comtech-hosted service, or in a hybrid configuration.
End-to-End FunctionalitySupports true end-to-end functionality, taking 9-1-1 traffic from carrier circuits to the PSAP demarcations.
Text to 9-1-1 AggregationCan be deployed as a text-only solution for jurisdictions not ready to fully deploy NG9-1-1.

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