Description
This 22 button add on module operates off of 1 pair wire and has up to 22 line appearances. It may be added to the M2616 and M2216 telephones. Without single footstand or double footstand. Need to order these separate. 22 keys for any combination of lines and features Up to 2 expansion modules can be supported Can be used with the M2616 Requires one of the following: Single footstand (7801xx) for one add-on Double footstand (7802xx) for 2 add-ons
