Although a basic mobile phone can cost up to a fifth of the average annual salary in the DPRK, a burgeoning population of users coupled with a series of newly installed cell towers means that the DPRK's domestic networks now extend into China.
The great red burgeoning superpower's largest cellphone provider has just installed cell towers to cover the mountain, all the way to the summit.
By purchasing smaller carriers for what amounts to considerably less than it would install cells and repeaters in the same areas, carriers are gaining paid subscribers without much investment.
Several have asked cell phone companies to install cell sites on top of light poles or on buildings where they are less noticeable.
The iPhone had just had its first birthday, and those of us in the Park Service were trying to figure out whether to install cell-phone towers to support the new technology.
Now, banks are installing cell phone jamming equipment to block cell calls at the ATMs themselves.
Within two years of an order to proceed from the MTA, Transit Wireless must install cell phone and wireless Internet service at six stations; secure at least one major cell phone carrier for the stations and demonstrate the effectiveness of the system.
In October 2013, the São Paulo government announced that it was installing cell phone jammers in dozens of prisons throughout the state.
"The most significant things that had been done to the prison structure at the time of the visit," the report says, "was that a roof had been installed over cell No. 10".
When thousands of iPhone owners descended on Austin, Tex., in March during South by Southwest, an annual technology and music conference, attendees were unable to send text messages, check their e-mail or make calls until AT&T installed temporary cell sites to amplify the service.
