If your organization gives you a desk phone, you can use it to make and receive calls with Google Voice.
Tip: Your desk phone is listed with your other Google Voice devices under Settings  
 Devices and numbers.
Transfer a call from a desk phone
When you answer a call from a desk phone, you can transfer the call to another Google Voice number in your organization.
- Answer the call.
- When ready, press Transfer.
    - Voice puts the call on hold.
 
- Dial the number of the person you want to transfer the call to.
- Choose an option:
    - To transfer the call immediately, press Transfer Now.
        - Voice connects the 2 people.
 
- Wait until the person answers, then press Transfer Now.
        - Voice connects the 2 people.
 
 
- To transfer the call immediately, press Transfer Now.
        
- Hang up.
Use call waiting on a desk phone
If you get an incoming call when you're on a call, you hear a tone on your handset and the calling number appears on your phone screen. You can answer the incoming call and automatically place the first call on hold.
- To answer the incoming call, press Answer.
- To ignore the call, press Reject.
To switch between 2 active calls, use the arrow buttons.
To return to a call after ending the other call, press Resume.
Make a second call from a desk phone
When you're on a call, you can put the call on hold and make a second call.
- Press New Call.
 Voice puts the first call on hold.
- 
    Dial the number of the second call. 
Or:
- Press Hold.
 Voice puts the first call on hold.
- Press New Call, and then
- Dial the number of the second call.
To switch between 2 active calls, use the arrow buttons.
To return to a call after ending the other call, press Resume.
Set up speed dial on a desk phone
You can customize speed dials on a desk phone for one-click dialing of frequently used numbers.
Note: In the future, Google Voice might assign new functions to buttons you use for speed dials. If so, you'll need to set up the speed dials again.
- On the side of the screen, press one of the unassigned speed dial buttons.
 Location of speed dial buttons depends on the phone model.
- In the Name field, press Edit. Enter a name for the speed dial, and then press Save.
 Use the arrow buttons to navigate.
- In the Destination Number field, press Edit. Enter the phone number, and then press Save.
- For the Voice Service field, leave blank and it will be automatically set.
- Press Home.
 The speed dial is set.
Edit a speed dial
- Press and hold the button next to the speed dial you want to change.
- Navigate to the field you want to edit.
- Press Edit and enter the information.
- Press Home.
 The speed dial is set.
Delete a speed dial
- Press and hold the button next to the speed dial you want to delete.
- In the Name field, press Default to clear.
- In the Destination Number field, press Default to clear.
- Press Home 
 The speed dial is set.
Change the ringtone on your desk phone
You can change the ringtone your desk phone plays when receiving incoming calls.
- Next to your name and number on the phone, press and hold the button until a new menu opens.
- Use the arrow buttons to navigate to Ring Tone, and then press Enter to open the list of available tones.
- Use the arrow buttons to navigate, and then press Play to preview a tone.
- Highlight the tone you want, and then press Select.
- Press Home.