Cisco Unified IP Phone 6901
The following sections describe the Cisco Unified IP Phone 6901 hardware.
Phone Connections
For your phone to work, it must be connected to the corporate IP telephony network.

1 |
Slot for Ethernet cable. |
4 |
Network port (10/100 SW) connection. IEEE 802.3af power enabled. |
2 |
Handset connection. |
5 |
DC adaptor port (DC48V). |
3 |
Slot for handset cable. |
6 |
Slot for DC adaptor cable. |
![]() Note |
In the EU and UK, your phone is shipped with a power switch cable that is required in order to provide power to your phone when using an AC-to-DC power supply. Connect the power cord to the power switch cable and then connect the other end of the power switch cable to the DC adapter port. |
Buttons and Hardware

1 |
Hookswitch |
Activates the features (hookflash) on your phone. |
2 |
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Places a connected call on hold. |
3 |
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Dials the last dialed number. |
4 |
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Allows you to pick up a second incoming call. The Line button LED indicates the call status. Allows you to answer a ringing call and swap between two calls on the same line. Also, you can use the line button to create a new call when the phone is idle. The LED associated with the line button lights up to reflect the line status. Color LEDs indicate the line state:
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5 |
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Controls the handset (off hook) and the ringer volume (on hook). |
6 |
Keypad |
Allows you to dial phone numbers. |
7 |
Handset with light strip |
Lights up to indicate a ringing call (flashing red) or a new voice message (steadyred). |
Hookswitch Button
The cradle rest of your phone contains the hookswitch button. You can press and quickly release the hookswitch button to activate features (hookflash) on your phone.