Aastra Telecom Pro 160 - Manual (Page 207)

Aastra IP Phone Model 536M and 560M Expansion Modules
41-001134-05, Rev 00, Rel. 1.1 A-59
Aastra IP Phone Model Reference
536M and 560M Installation and Setup
On the 536M, there are 18 softkeys in each column (totaling 36 keys) on the
keypad. On the 560M, there are 10 softkeys in each column (totaling 20 keys) on
the keypad. The 560M also provides 3 keys at the bottom left of the unit that
allows you to configure 20 keys for each button (totaling 60 softkeys).
Note: You connect the module to the right side of the IP phone via an RJ-45 connector.
536M 560M