Trust ISDN USB Modem & Phone System

Trust ISDN USB Modem & Phone System ... built-in 2-line phone system to use your standard phone, fax and/or analogue modem. Surf the Internet and make a phone call at the same time! The phone system is fully programmable by software or analogue phone. 2 lines can be used for 2 calls at the same time or to call each other. The system is hot swappable and connectable at any time.