The low number of calls with wireless Phase...
The low number of calls with wireless Phase II location information delivered to five public safety answering points in California stems from the “fact that these PSAPs never actually requested updated Phase II locations for the vast majority of 911…
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calls,” T-Mobile said in an FCC filing (http://bit.ly/17HRxUq). T-Mobile executives met with the Public Safety Bureau Wednesday to discuss an ex parte filing by CalNENA on Aug. 12 that showed a significant drop in wireless Phase II location data reporting by five major wireless carriers to the PSAPs (CD Aug 14 p4). Based on T-Mobile’s analysis of 911 calls placed to the five California PSAPs from January to July 2013, the firm said there’s no problem with the availability of wireless Phase II location data, with data available for 90 percent of calls more than 30 seconds long and 86 percent for calls over five seconds long, said the carrier. The standard implementation of wireless Phase II information specifies a PSAP should re-bid when updated location information is required, and the five PSAPs didn’t re-bid for location on 79 percent of the 911 calls routed by T-Mobile, said the company. If the PSAPs want to “solve the problem,” T-Mobile said the PSAPs can design their systems to automatically re-bid for location after an appropriate amount of time if they want to “pull the updated location data” more consistently. Short calls should have been excluded from the CalNENA filing because they are “unlikely to be emergencies,” said T-Mobile. Twenty-one percent of calls to these PSAPs were under five seconds, 32 percent under 15 seconds and 44 percent under 30 seconds, said T-Mobile. CalNENA did not immediately comment.