What is the technology that would allow a call from a cell phone to be routed to a transmission device that triggers a loud beeping sound. For example, using a cell phone to call a number that calls a database, and then triggers an external receiver that is attached to one's keychain for example?
Wondering what other companies offer the convergence aside from T-Mobile's 'Hotspot'. Need a moderately priced open phone to converge Open Office with. Also, is there a way to fax inexpensively. Thank you in advance.