You can expand your M2616 with an add-on M522. The M522 Meridian Mate Expansion Module is compatible with the M2616 digital set. The M522 is a 22-button expansion unit, with associated LCD indicators, providing additional keys for lines or features including additional Speed Call buttons.
Up to two expansion units can be used, for a total of 44 extra programmable buttons. The M522 offers effective mini-console capabilities. Used in conjunction with Direct Station Select (DSS), the attendant can monitor and select a free station with a touch of a button. Busy Lamp Field (BLF) allows the attendant to visually monitor who is available to take a call. Camp-on allows the attendant to transfer a call to a busy station, placing the caller on hold until the station is available.