AASTRA 6753i Installation Guide EN - Manual (Page 33)

Model 53i IP Phone Installation Guide 27
Model 536 Expansion Modules (536M)
4. Connect the other end of the RJ-45 cable to the RJ-45 port on the back of
the expansion module as indicated in the illustration above.
5. Turn over both units to sit face up on the desk with the expansion mod-
ule sitting flush against the right side of the phone.
Note: Install additional modules as applicable using additional RJ-45 cables. You
must attach any additional module to the right side of an existing module
(piggy-backed) as shown in the following illustration.
For more information about setting the softkeys, see the
Aastra Model 53i User Guide.