| 摘要 |
Disclosed is a cellular public telephone network having at least one cellular public telephone with a primary SIM card and configured to receive a secondary SIM card. The cellular public telephone also has a four-button telephone operation interface having an up arrow key, a down arrow key, an OK key, and a back arrow key, such that substantially all of the operational features of the cellular public telephone may all be accomplished by the use in sequential combination of only the up arrow key, the down arrow key, the OK key, and the back arrow key. The cellular public telephone network also includes at least one network server configured so as to implement: a method for collecting statistical information about cellular public phone use and performance metrics, a method for management of a large number of cellular public telephones and a method of telephone theft notification. |
