Grandstream Options

We have listed the most common function requests for Grandstream phones here. If your specific phone model isn't listed, try following the instructions for a similar model. This approach often works successfully.

If the function you're looking for isn't listed here, Grandstream provides user manuals that are easily found via Google.

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Setting up Busy Light Field (BLF) and speed dial

Setting Up Colleague Availability

On your Grandstream device, you can add an extra display to show all your colleagues' phones—handy to see who's available.

Go to Programmable Keys.
Choose Extension Boards.
Start with EXT 1 (see image).

Mode: Busy Lamp (BLF)
Account: Account 1 (or another one if you've added more)
Description: Name of the device or your colleague
Value: VoIP Account ID

Go to freedom.voys.co
Head to Admin
Then to VoIP Accounts
Open your colleague's account and copy the Account ID

Do this for each colleague you want to add
Don’t forget to hit Save and Apply when you're done!

Setting Up Speed Dial for Colleagues

Same idea as above, but instead of choosing BLF under Mode, pick Speed Dial.

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Configure internal ringtone

Want to hear the difference between a call from a colleague and a customer?

Here’s how to set a custom ringtone for internal calls on your desk phone.

On a computer that’s on the same network as the phone, open a browser and go to the phone’s IP address. You’ll find this on your Grandstream’s screen.
Go to Accounts
Click on Account 1
Then click Call Settings
Enter alert-internal under Matching Rule
Pick a ringtone you want to use for internal calls

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Change Internal Extension Number

If you’ve changed the internal number of a VoIP account in freedom.voys.co, the number shown on your phone’s display won’t automatically update. That’s because what your phone shows is managed separately from what’s set in Freedom.

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Change the internal number in Freedom

Go to Freedom
Click on Management
Go to VoIP Accounts
Select the VoIP account you want to update (in this example 201/Bet Weter)).

Update the internal number, for example from 201 to 208

Click Save

The number is now changed in Freedom, but not yet on your phone. To change what’s shown on the phone display, you’ll need to log in to your phone’s web interface using its IP address. Here's how:

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Update internal number on your Grandstream phone

Your Grandstream's screen shows its IP address
Enter that IP in your browser
Log in with admin for both username and password
Go to Accounts
Click on Account 1
Go to General Settings
Under Account Name, enter the new VoIP account number
Click Save and Apply

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Wrong number showing after transferring a call

Seeing your colleague’s number instead of the customer’s after transferring a call? That’s probably a VoIP account setting.

Log in at Freedom
Go to Management
Click on VoIP Accounts
Select the correct account
Go to the Advanced (SIP) Settings tab
Change Caller ID Header from From SIP Header to Remote Party-ID SIP header
Hit Save

Still not fixed?

You might need to adjust the setting on the phone itself too.-

Find your IP address

Your Grandstream display shows its IP address
Enter it in your browser
Log in with admin / admin

Doesn’t work? Newer Grandstreams have the password printed on the device
Forgot the password? Then a factory reset is your only option

In the web interface, look for the Caller ID Header setting and change it to Remote Party-ID SIP header.

Still stuck? Double-check that the VoIP account settings in Freedom match what’s on the device and experiment with the available Caller ID options.

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Setting up Encrypted Calling

What’s encrypted calling?

By default, calls between your phone and Voys’ platform aren’t encrypted. That means the call info and audio travel unprotected over your network and the internet. You can fix this.

With encryption: