01512nam 2200337z- 450 991068943540332120161209100537.0(CKB)5860000000022160(BIP)008677061(EXLCZ)99586000000002216020220406c2001uuuu -u- -engEnsuring compatibility with enhanced 911 emergency calling systems a progress report : hearing before the Subcommittee on Telecommunications and the Internet of the Committee on Energy and Commerce, House of Representatives, One Hundred Seventh Congress, first session, June 14, 20011 online resource (iii, 67 p.) 0-16-066014-9 Ensuring compatibility with enhanced 911 emergency calling systems TelephoneUnited StatesEmergency reporting systemsCell phone systemsUnited StatesEmergency communication systemsUnited StatesTelephoneCell phone systemsEmergency communication systemsTechnology & engineeringTelephoneEmergency reporting systems.Cell phone systemsEmergency communication systemsUnited States, Congress House Committee on Energy and Commerce Subcommittee on Telecommunications and the Internet Staff,othBOOK9910689435403321Ensuring compatibility with enhanced 911 emergency calling systems3168167UNINA