Examples reported in the media where this has occurred include the September 11, 2001 attacks, the 2003 Northeast blackouts, the 2005 London Tube bombings, Hurricane Katrina, the 2006 Hawaii earthquake, and the 2007 Minnesota bridge collapse.
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In 2010 there were estimated to be five billion mobile cellular subscriptions in the world.
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In June 1998 the company obtained a license for mobile telephony, and began operations in 1999 under the brand name Amena through its subsidiary Retevisión Móvil.
Evolved EDGE is a bolt-on extension to the GSM mobile telephony standard, which extends the previous EDGE upgrade to achieve theoretical speeds of up to 1 Mbit/s with relatively low cost and ease.
HT also provides mobile telephony through its subsidiary ERONET.
Iraqna launched operations in Iraq in December 2003, after the fall of Saddam Hussein regime in Iraq, then with an exclusive license to provide mobile telephony services in Iraq’s central region.