Nortel Networks Corporation (Nortel), was a multinational telecommunications and data networking equipment manufacturer that filed for bankruptcy in 2009. As the next-generation telephones that build on the Norstar Telephone Portfolio, the Business Series Terminals set the standard for durability, reliability and flexibility. These products can be deployed to support both the Business Communications Manager and Norstar systems with full backward-compatibility, so you can add them to your existing voice infrastructure to cost-effectively scale voice connectivity as your business grows. Norstar Integrated Communications Portfolio is comprised of telephony solutions for small-to-medium businesses and branch offices, with growth up to 248 ports (192 stations). This fully digital platform brings together all your communications - voicemail, fax, email, computer and telephone - right at your desktop. Advanced integrated applications include enhanced call centers and computer telephony integration.