US Robotics External Serial Maintenance Modem (Courier v.Everything)
Our modems are thoroughly tested with a Mitel system and are guaranteed to work right out of the box. Will work with Mitel SX-200 Digital, ML/EL/Elx, and 200 MX systems. Comes pre-configured at 9600 baud. Two year warranty. These are hardware-based serial-interface modems (serial cable sold separately). Includes AC power adapter.