Your modem is a modulator-demodulator device. It converts digital signals (bits) sent by your computer's serial port to analog signals which can be transmitted over telephone networks. Purchase the highest quality modem you can afford. If you have an internal modem, you don't have to worry about why motherboard and serial card manufacturers are still designing equipment that won't support high-speed modems. If you have an external modem, then your computer
Tubac dial up internet service, Tubac, AZ up internet service dial Tubac
Tubac up internet service, dial Arizona, Tubac dial up internet service
