Sitemap Nortel M7000 digital telephones, "T" Collection Business Units, i2004 units, series 1200 VOIP sets, and the excessive finish 1100E VOIP series sets, such as the Bluetooth compatible Nortel IP Cellphone 1140E SIP phone series VOIP telephones. The advantage is that prospects can use a mixture of completely different generations of Nortel Telephones, starting from early M7000 telephones to the newest full shade display Nortel 1165E telephones. Unlike the past the place M7000 Meridian telephones were devoted for the smaller Norstar system and M2000/M3900 Meridian telephones had been devoted to the larger Choice 11E/61C/81C PBX, the i2000/1200/1100E collection IP telephones function on both the Small Medium Business (SMB) BCM platform in addition to the bigger Enterprise Communication Server 1000/Avaya Communication Server 2100 platforms, each taking over the options and codes on the show from their respective switch.