Compare 3Com U.S. Robotics 56K Voice Faxmodem Analog Modem (3CP2976-OEM-50) to 3Com U.S. Robotics Internet Call Analog Modem (USR5695)

Now you can have more productive conference calls at your business or home office with the clarity and convenience of a top-quality full-duplex speakerphone in the same device that brings the full power of the Internet into your desktop computer at amazing speeds. With the 56K Voice Faxmodem and your ordinary analog phone line, you can click through more Web pages in less time. 3Com's exclusive line probing technology finds the "potholes" in you connection, and tells your provider's equipment how to avoid them, to ensure the most efficient connections. So the latest weather maps, live audio broadcasts, even video clips come to you at the highest speed possible on your line. Less

The U.S. Robotics Internet Call Modem adds sophisticated online call management and economical Internet voice call capabilities to a powerful, easy-to-use internal faxmodem. You're in control of your time online. When an incoming call arrives, a pop-up window tells you - you decide whether to end your Internet connection and take the call, or ignore it and stay online.??You can make live, real-time, full-duplex phone calls while you stay online, with Net2Phone Internet voice call software. It's just like making a traditional long distance call, but at a lower cost - calls to anywhere in the U.S. and Canada are free! With a telephone connected to your modem, you can call any phone in the world over the Internet. You can also use your modem's Internet connection to send faxes, call another PC, send voice e-mail, or enjoy live voice chat. And because the advanced voice call functionality is built into the modem, you can speak and listen through your telephone instead of your computer ... Less