T-Mobile fired back at the National Emergency Number Association in...
T-Mobile fired back at the National Emergency Number Association in a filing on testing requirements as the commission implements new E911 location accuracy rules. In a filing posted by the FCC Tuesday, NENA accused T-Mobile of advocating weakened rules (http://xrl.us/bkzca8).…
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“As T-Mobile would have it, no network would be subject to a testing requirement unless localized position uncertainties grow beyond some threshold value or confidence metrics decline to unsatisfactory levels,” NENA suggested. “T-Mobile reads the [revised rules] to require testing only as means to remediate degradation of location over time.” Neither statement is true, T-Mobile said (http://xrl.us/bkzcb9) Wednesday. “Under the Second Report and Order, carriers will have to demonstrate compliance in each county for which they claim compliance. That requires empirical testing of county-level accuracy,” T-Mobile contended. The debate regarding periodic maintenance testing is only about what happens after compliance at the county level has already been established empirically, with uncertainty baselines."