|The Effect of Mass
Calling Events on Legacy SR to PSAP Trunking
This NENA Information Document (NID) discusses a situation
that was observed when a Mass Calling Event to 9-1-1 occurred within a Legacy
9-1-1 system provider platform.
Investigation by the Network Reliability Steering Committee (NRSC)
determined that certain types of Legacy Selective Routers (SR) are susceptible
to removing SR to PSAP trunks from service during high call volume events. This document will discuss certain
procedures, and policies that NENA, Legacy SR Operators, Public Safety
agencies, and other equipment and network providers can do, alone or together,
to prevent the SR from removing trunks from service. The Network
Reliability Steering Committee (NRSC) created a document outlining their
findings. It is ATIS-0100034, which can
be located at www.atis.org in the document center. A copy of the recommendations made in
ATIS-0100034 is included in Appendix A of this NENA Information Document (NID).