speaker phone, and a quick reference card located underneath the handset. The handsets were known for their heavy-duty design and high clarity audio. The Feature key present on each telephone model allowed for access to both advanced features (including paging, transfer, conferencing, and voicemail) and local settings (such as language, display contrast, ring tones, and speed dial). Migration to BCM (Business Communication Manager) The Norstar system is no longer produced by Nortel and branded as the "Nortel Norstar" system. The recommended migration path from the Norstar to a full VOIP/SIP system is the BCM, which is short for Business Communication Manager. There are two systems available, the BCM50 for smaller enterprises with 3-30 extensions and the BCM450 which allows up to 300 sets. After Avaya's acquisition of Nortel's Enterprise Division, it announced that the Norstar and BCM systems would continue being manufactured, but under the Avaya name. According to Avaya, the Norstar/BCM systems and telephone sets would eventually integrate with the Avaya IP Office via Avaya Aura. Nortel features and programming would be preserved, but would accompany Avaya features and programming as well. For clients that want to move from the Norstar digital system format to a VOIP format, Nortel BCM is the replacement product recommended by Nortel/Avaya. BCM uses all of the feature codes, and calling features of the older Norstar systems and integrates them into a Digital/VOIP format that with RLS3.0 and further, allows SIP trunking, Unified Messaging and the use of Nortel M7000 digital telephones, "T" Series Business Sets, i2004 sets, series 1200 VOIP sets, and the high end 1100E VOIP series sets, such as the Bluetooth compatible Nortel IP Phone 1140E SIP telephone series VOIP telephones. The advantage is that customers can use a mix of different generations of Nortel Telephones, ranging from early M7000 telephones to the latest full color display Nortel 1165E telephones. Unlike the past where M7000 Meridian telephones were dedicated for the smaller Norstar system and M2000/M3900 Meridian telephones were dedicated to the larger Option 11E/61C/81C PBX, the i2000/1200/1100E series IP telephones function on both the small-medium business (SMB) BCM platform as well as the larger Enterprise Communication Server 1000/Avaya Communication Server 2100 platforms, both taking on the features and codes on the display from their respective switch. See also Business telephone system Portico TVA Telephone hook References Avaya Nortel products Telephone exchanges