The Avaya Merlin Magix 008 OPT Module has 8 station ports of Off-Premises/Out-of-Building Tip/Ring analog telephones, fax machines, or modems. Range of 5,000 feet from Control Unit, farther if connected through Central Office. The Avaya Merlin Magix 008 OPT Module has a built-In ring generator. Runs on both Merlin Legend and Merlin Magix systems and a Clamshell is required for Merlin Legend carriers.