When using a Sound Base in Linked Mode, the primary base unit must be connected using the
CP-PWR-CUBE-3 external power supply.
Caution
If two devices are linked after both are registered, the user can select which is the primary device.
A secondary device receives upgrades to firmware seamlessly from the primary device.
Link Conference Phones
Use a daisy cable to connect two sound base units in Linked mode. This procedure describes the best practice
for connecting the two units.
Procedure
Step 1
Connect the DCU to the conference phone to be used as the primary unit.
Step 2
Connect the network cable to the conference phone to be used as the primary unit.
Step 3
Connect the power cable to the primary device and plug into a wall plug.
The secondary Sound Base does not need to be plugged into external power, but in Linked Mode the primary
unit must be connected to external power.
Step 4
Use the provided daisy cable to connect the primary unit to the secondary sound base.
Voice, dial tone, ringer and base LEDs synchronize between the two units.
Related Topics
Linked Mode, on page 100
Cisco Unified IP Conference Phone 8831 Administration Guide for Cisco Unified Communications Manager 9.0
101
Features, templates, services, and user setup
Link Conference Phones
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