The Model DPC2203C VoIP Cable Modem provides broadband network operators with a cost-effective way to offer standard telephone service along with high-speed data services to subscribers. The DPC2203C features a highly integrated Embedded Multimedia Terminal Adapter (EMTA) with two RJ-11 telephony ports for conventional telephones or fax machines. In addition, the DPC2203C contains both a 10/100Base-T Ethernet port and a USB 1.1 port to provide connectivity for high-speed data services or other Internet appliances. The DPC2203C modem also includes an internal Lithium-Ion cartridge-style battery for convenient backup power.