The 2742 module allows connection of an analog phone to the 2740/2750 systems. This is most often used for cordless phones, but can be used to connect any analog phone, fax, modem, etc. The phone connected to the 2742 will have full access to all connected lines and all features of the system (hold, intercom, paging, etc.). This module takes up one station position, with a maximum of 15 modules that can be installed.