EMERGENCY CALLS
Never rely solely upon your wireless phone for essen- tial communications (e.g. medical emergencies), if it can be avoided, since a wireless phone requires a complex combination of radio signals, relay stations and landline networks for its operation. Consequently, emergency calls may not always be possible under all conditions on all wireless phone systems.
Your wireless phone, however, may sometimes be the only available means of communication at the scene of an accident. When making an emergency call, always give the recipient all necessary information as accu- rately as possible. Never terminate an emergency call until you have received clearance to do so.
FCC Enhanced 911 (E911) Rules Background
The Federal Communications Commission (FCC) re- quires wireless carriers to transmit specific latitude and longitude location (Automatic Location Identification = ALI) information as well as “911” calls to Public Safety Answering Points (PSAPs) to identify the location of the caller in case of emergency.
Accuracy requirement for ALI information by FCC E911 rules is within 50 meters for 67 percent of calls and within 150 meters for 95 percent of calls (FCC’s ALI Requirements).
9155-GPX’s ALI Capability
The Audiovox
The network compliance with the above FCC require- ments is dependent on: (a) the use of digital technol- ogy by the wireless network; (b) GPS satellite signals being able to reach the handset (such transmissions do not always work indoors, for example) ; and (c) hand- set signals reaching wireless “base stations” (atmo- spheric and environmental conditions may cause varia- tions in handset receiving signal strength).
Also the transmission of the ALI information is subject, in part, to system constraints within the wireless net- work to which the E911 signal is transmitted and over which Audiovox has no control.
Finally, customers are advised that the
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