Instruction manual
Reassigning Business Cordless 905 Line Buttons
5-23
Reassigning Buttons on the TransTalk and Business Cordless 905 Telephones
Behind Switch Mode 5
In Behind Switch mode, the system assigns an ICOM Ring button and an ICOM 
Voice button (no outside lines connected to the control unit are assigned to 
buttons) based on the MLS-12D button assignment (see Figure 5-11).
Figure 5-11. BC 905 Factory-Set Button Assignments in Behind Switch 
Mode
The factory-set assignments can be confusing to the user. To reduce 
confusion, change the button assignments; use Figure 5-8 as a guide. (Actual 
line assignments depend on customer requirements.)
Figure 5-12. Reassigned BC 905 Buttons in Behind Switch Mode
ICOM
Ring
1
Line 4
2
ICOM
Voice
3
Blank
4
Blank
5
ICOM
Ring
1
ICOM
Voice
2
Blank
3
Blank
4
Blank
5










