AT&T, Verizon, T-Mobile tout Z-axis support for 911
Z-axis data, along with X- and Y-axis data, ought to let emergency responders know exactly which floor a 911 caller might be on. And now, AT&T, Verizon and T-Mobile are successfully capturing that data.
Firstnet Jeff Bratcher Jessica Rosenworcel B Christopher Alamy Us Department Of Commerce National Telecommunications Google Android Emergency Location Service First Responder Network Authority Firstnet
Source: lightreading.com