Headquartered in San Ramon, California, the IMTC was formed in September 1994 through a merger of The Consortium for Audiographics Teleconferencing Standards, Inc. (CATS) and the Multimedia Communications Community of Interest (MCCOI). CATS, formed in 1993, focused on the T.120 standards suite for multipoint data conferencing. MCCOI, also formed in 1993, focused on the ITU-T H.320 (ISDN) and H.324 (POTS) standards suites for multipoint video communications. In December 1995, the IMTC merged with the Personal Conferencing Work Group, Inc. (PCWG). The PCWG had also focused on multimedia teleconferencing standards as well as the needs of users of products and services in this category.