For providing person-to-person communication as well as improving office work efficiency, demands for multimedia communication services have increased. This paper discusses Integrated Voice/Data LAN (IVDLAN) for handling multimedia communications. First, the IEEE 802.9 IVDLAN working group activities on a user access network which dedicatedly provides a multi-megabit service over an existing unshielded twisted telephone cabling system are summarized. Next, this paper reveals the first commercial IVDLAN product APEX 8000/10 which meets the IEEE 802.9 architecture. A set of an ISDN terminal and an IEEE 802.3 terminal are connected to the node through a terminal adapter. The line rate is 4.096 Mbit/s and the maximum line length is 600m. The IVDLAN node has an 128 Mbit/s burst switching module and a 64 Mbit/s multiple-rate circuit switching module. The flow control in a user-network interface and backpressure control in the burst switching module achieve the data communication with low packet loss.