US Robotics' (USR) x2 modem technology ... Windows 95 is a surprise inclusion Included with the I-Modem is an ISDN cable, a quick reference card, Getting Started manual, Reference manual, the ...

US Robotics developed its x2 standard, so named for being double the speed of 28k modems. Rival manufacturer Rockwell soon dropped the K56Flex standard, which levied the same trick to up speeds.

Also known as an ISDN LAN modem, it contains a BRI ISDN port and an Ethernet port. It may also provide several Ethernet ports, which lets it serve as a central Ethernet hub for a small workgroup.

This "dual analog" method, also known as "modem bonding," uses the Multilink PPP protocol and must be supported by the ISP. ISDN modems use channel bonding to split the data stream into two 64 ...