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Optional Equipment (for 55i, 57i, and 57i CT only)
RN-001029-00, Rev 01, Release 2.0 9
SIP IP Phone Models 53i, 55i, 57i, 57i CT Release Notes
Model 536EM
Expansion Module
(for all models)
The 536EM module adds 36
additional softkeys to the IP
phone models 55i, 57i, and 57i
CT. The 536EM provides paper
labels for each softkey. Up to 3
modules can be piggy-backed to
provide up to 108 additional
softkeys for the phone.
Module 560EM Expansion
Module
(for 57i and 57i CT only)
The 560EM module adds 60 additional
softekeys to the IP phone models 57i
and 57i CT (using the 3 function keys
on the bottom right of the unit). The
560EM module provides an LCD
display for displaying softkey labels. Up
to 3 modules can be piggy-backed to
provide up to 180 additional softkeys
for the phone.
536EM
Module
Expansion
560EM
Module
Expansion