This Nortel M7310 phone, also known as Norstar M7310, Meridian M7310, or Ameritech M7310, is a vintage piece being sold AS IS. It has 3 lines and is designed for business use. With its expansion handset(s), this phone is a reliable option for office telecommunication systems. Its brand name, Nortel, is synonymous with quality and reliability. This model, M7310, is commonly referred to as the Norstar M7310 or Nortel Norstar Meridian M7310. It is perfect for businesses looking for an affordable phone that can handle multiple lines. Also can be used as prop for movie or local theater.