It is also a valuable safety tool for any person who drives their automobile outside of cellular coverage or for emergency messaging during natural disasters such as hurricanes or other situations when cellular or land-based communications may be damaged or unavailable.
A four-hour drive from the nearest cellular coverage in the remote highlands of Papua, Indonesia, a new kind of guerilla telecom network is operating, albeit outside the law, using a cheap base station roped into a treetop.
Around the world, hundreds of millions of people, mostly in remote rural areas, lack even basic cellular coverage.
The problem could have been cellular coverage.
Of course, if you choose Sprint or Verizon, the cellular coverage is an important plus.
Four days without cellular coverage can lead to palpitations and debilitating night sweats.
Cellphone companies, however, seem to have substantially increased their capacity in the area, averting complaints about cellular coverage.
DAS-installed buildings have improved in-building cellular coverage and performance, in addition to improved AT&T wireless coverage.
Wi-Fi Calling is useful when you are in an area that has weak cellular coverage.
As a result, companies will have to rework their business plans to fill the holes in Brazil's cellular coverage.
The Time Warner Center in Manhattan, for example, has seamless cellular coverage throughout the building because of special antennas and repeaters that cost its owners about $1,000 each.
