AASTRA 6755i Installation Guide EN - Manual (Page 31)

Model 55i IP Phone Installation Guide 25
Model 536 Expansion Modules (536EM)
Model 536 Expansion Modules (536EM)
The 55i IP Phone offers optional Expansion Modules that attach to the right
side of the phone to provide additional softkeys.
The 536EM provides 36 additional softkeys on a 55i IP Phone. The softkeys
support the following features:
• BLF
• Speedial
• Shared Call Appearance
Each key provides an LED for indicating call status. The 536EM provides a
paper label for convenient key labeling.
Additional 536EM modules (up to 3 total modules) can be piggy-backed to
an existing module providing an additional 108 softkeys to the phone. You
connect the additional modules to the right side of an existing module. The
following figure illustrates the addition of multiple 536EM modules on the
55i IP Phone.
You can configure the softkeys via the configuration files or the Aastra
Web UI. See the Aastra 55i SIP IP Phone User Guide for more
information about using the expansion modules on the 55i IP phone.