subsidiaries CommWorks Corporation was a subsidiary of 3Com Corporation, based in Rolling Meadows, Illinois. It was sold to UTStarcom of Alameda, California in 2003. CommWorks was formerly the Carrier Network Business unit of 3Com, comprising several acquired companies: U.S. Robotics (Rolling Meadows, Illinois), Call Technologies (Reston, Virginia), and LANsource (Toronto, Ontario, Canada). CommWorks was able to use technology from each company to create IP softswitch and IP communications software. U.S. Robotics provided media gateways (the Total Control 1000 product line, formerly used for dial-modem termination) and softswitch technology. Call Technologies provided Unified Messaging software. LANsource provided fax-over-IP software that was integrated with the Unified Messaging platform. The Carrier Network Business unit of 3Com developed an Inter-working function technology that became the first and dominant 2G CDMA wireless data gateway product. In partnership with Unwired Planet (now Openwave) and Qualcomm Quicknet connect allowed for 6 second connect times versus modems connecting the call in approximately 30 seconds. This product was deployed in the United States, Japan, and Korea covering the 2G CDMA market sample carriers included Sprint. It led to follow on products that became core to CommWorks now UTStarcom offerings including the 2.5 and 3G packet data gateway products known as PDSN and Home Agents. CommWorks/3Com co-developed an H.323-based softswitch with AT&T in 1998 for use in a "transparent trunking" application for AT&T's residential long-distance customers. Long distance telephone calls were redirected from the LEC's ingress CLASS 5 switch to the Total Control 1000 media gateway, where it was converted from TDM to IP and transported across AT&T's WorldNet IP backbone. When it reached the destination, it was passed to the egress LEC's CLASS 5 switch as an untariffed data call. CommWorks modified the gateway and softswitch software to support SIP for MCI/WorldCom's hosted business offering in 2000. Although 3Com sold CommWorks to UTStarcom, they retained intellectual property rights to the softswitch technology. After modifying the software to enable enterprise PBX features, 3Com released this technology as VCX, the industry's first pure SIP PBX, in 2003. See also 3Station Busy Override List of acquisitions by Hewlett-Packard References Bibliography External links HPE Networking Aruba Networks H3C Technologies Eric Benhamou and the Turnaround of 3Com - interview with Sramanamitra.com Computer companies established in 1979 Networking companies of the United States Networking hardware companies Hewlett-Packard acquisitions Xerox spin-offs 1979 establishments in California Computer companies disestablished in 2010 2010 disestablishments in California 1980s initial