Also known as IsoEnet and Integrated Services LAN (ISLAN). Specified by the IEEE as 802.9 (1995), IsoEthernet was intended to support isochronous traffic such as voice and videoconferencing over the same twisted pair as Ethernet. To traditional Ethernet at 10 Mbps, IsoEthernet added 96 ISDN B channels and a single D channel, all of which are 64 kbps channels and all of which share a cable using the 20 MHz signaling rate of 10BaseT Ethernet. The added B channels increased the theoretical Ethernet transmission rate by 6.144 Mbps, bringing the aggregate nominal rate to 16 Mbps.The individual B channels could be used for voice, or could be bonded for high speed videoconferencing. ISLAN is considered obsolete, having been overwhelmed by switched Ethernet at 100 Mbps, 1 Gbps, and even 10 Gbps. See also 10BaseT, 802.9, B channel, bonding, D channel, Ethernet, IEEE, ISDN, and isochronous.