Avaya Merlin Magix 100R Integrated Network Access Module (Refurbished)Key Features: The Merlin Magix 100R INA Module will integrate the users Internet access and telephone connectivity on a single T1 line Included is CSU DSU, router and packet filtering firewall software that will provide you extra security Connects to one DS1 circuit with 24 channels and can be configured to either T1 or PRI service Required to be installed into the first slot of the Merlin Magix Expansion Limit of three for DS1 INA modules per system