BellSouth E911 - Manual (Page 75)

CG-EWCG-001 Wireless E911 Guide
Issue 3, January 6, 2004 No Record Found (NRF) Processing
8. No Record Found (NRF) Processing
8.1 Overview
A No Record Found (NRF) condition occurs when a subscriber calls 911 and no database information
exists for the cell site pseudo-ANI telephone number. The purpose of an NRF investigation is to:
• identify the reason a NRF occurred
• take corrective action to update the database as necessary
There are several reasons a record may not be available for retrieval:
• the record may be in the Error File
• the record may not have posted between the time the cell site has been "turned up" and the
time the record is processed and entered into the database
• the update SOIR file transmission may have failed to complete successfully
• the record may not have been sent to be inserted into the database
It is imperative the Wireless Carriers ensure all appropriate pseudo-ANI records are successfully posted to
the E911 database before conducting 911 call testing or turning up service. Wireless 911 calls processed
without corresponding pseudo-ANI records in the database will result in NRFs at the PSAP and manual
investigation by the INTRADO Data Integrity Unit.
8.2 No Record Found (NRF) Processing
Each PSAP in the region is served by a primary ALI processor and secondary ALI processor. These
processors alternate responses to ALI retrieval requests (bids) coming from the PSAP. Therefore, audit
data, including NRF data, is found on the audit files from both the primary and secondary ALI processors.
This data is combined to produce one NRF report.
8.3 No Record Found (NRF) Report Schedule
The NRF report will be generated every day, Sunday through Saturday. This report provides information
about NRFs for investigation. NRF details will appear on the report once the appropriate carrier is
identified.
The following schedule has been developed for the generation of daily NRF reports. The NRF report will
be faxed daily (Monday-Friday) to the appropriate Carrier or data provider.
Fri / Sat / Sun’s NRFs NRF reports distributed on Monday
Monday’s NRFs NRF report distributed on Tuesday
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