Attaching Multiple Expansion Modules - Aastra 6753i Installation Manual

Attaching Multiple Expansion Modules

Multiple modules (up to 3 total modules) can be piggy-backed to an IP
phone providing an additional 108 softkeys with M670is. You connect the
additional modules to the right side of an existing module. The following
figure illustrates the addition of multiple M670i modules on the 6755i IP
Phone.
For more information about setting the softkeys, see the Aastra Model
6753i User Guide.
Model 6753i IP Phone Installation Guide 25