Grandstream desk phone user guide

Making a call

1. On your Grandstream device, take the handset off-hook or press Speaker button or an available LINE key (LINE key that activates speakerphone).

2. The line will have a dial tone and the corresponding line’s LED will turn green.

3. If required, select another LINE key (alternative SIP account).

4. Enter the phone number.

5. Press the SEND button or press the DIAL soft key. 
   

Setting up the Dial plan/ Digit map

Dial plans or Digit maps are predefined rules that determine the sequence of characters required to dial an outbound call.

When a dialed number on the device matches a predefined dial plan, the device will transmit the dialed numbers for the outbound call. If no match is found, the call will not proceed.

To configure or modify the dial plan of your Grandstream device, you will have to access the web configuration interface of your desk phone.

On the web interface, select Account->Call Settings and modify the Dial Plan.

Learn more on the rules of the dial plan here.

For example:

{ x+ | \+x+ | x+ | xx*x+ } - is the default dial plan on Grandstream devices.

To prefix the country code 1 before all the dialed out numbers:

Modify the dial plan as: {<=1>xxxxxxxxxx|x+|x+|xx*x+} 

Activating Speed Dial

1. On your desk phone, long press any one soft key.

2. Set Mode for the soft key as Speed Dial

3. Key in a suitable display name you want to display when you press the soft key in Description field.

4. Key in any Phone Number, Contact, extension in the Value field and select Save.

 

User extensions for Zoho Voice are limited to 4-5 digits only. Please ensure that all your current extensions fall within this range.

Answering Calls

Single Incoming Call

1. Answer call by taking your Grandstream device's handset off hook or by pressing the SPEAKER button or by pressing the corresponding account LINE button.

1. When there is a call waiting, you will hear a call waiting tone.
2. The next available line will flash red to indicate the incoming call.
3. Answer the incoming call by pressing its corresponding LINE button.
4. The current call will be put on hold automatically.
5. To toggle between the calls, just use the LINE button.
   

 Contacts are displayed from the Zoho Voice Contacts module, only during incoming calls.

Ending a call 

End a call on your Grandstream device by pressing the End Call soft key or hang up the phone.

Call Hold/Resume

 To hold or resume a call on your Grandstream desk phone:

1. Hold: Place a call on hold by pressing the Hold button.

2. Resume: Resume call by pressing the corresponding blinking LINE.

Call Transfers

1. Blind Transfer
   
2. Static Attended Transfer
   
3. Dynamic Attended Transfer
   

The default call transfer mode on your Grandstream device is Blind Transfer.

To change the transfer mode for call transfers, follow the steps below:

1. Log into your Grandstream device's web user interface. 
2. Go to Settings -> Call Features.
3. Look for the Transfer Mode via VPK/MPK option.
4. Choose the suitable transfer mode from the drop-down menu.
   

When transferring calls from your Grandstream desk phone, the transfer call recipient cannot record or further transfer the call. 

Blind Transfer:

1. On your desk phone, press the Transfer button.

2. Dial the number and press the Send button to complete transfer of an ongoing call.

Static Attended Transfer:

1. On your desk phone, press an idle line key to make a new call and the active LINE will be placed on hold automatically.

2. Once the call is established, press the Transfer button followed by the LINE button of the held line to transfer the call.

3. After the call is transferred, the phone will display an idle screen.

Dynamic Attended Transfer:

1. Establish a call first using your desk phone.

2. Press Transfer key to bring up a new line, and the first call will be placed on hold automatically.

3. Dial the number and press SEND button to make a second call.

4. Press the Transfer key again to make the transfer.

For Dynamic Attended Transfer, after dialing out the number for the second call, a Split soft key will be displayed on your desk phone screen. If the second call is not established yet (still in ringing phase), pressing Split will hang up the second call. If the second call is established (answered), pressing Split will resume the second call and keep the first call on hold.

3-WAY Conference 

Initiate a Conference Call: 

1. On your desk phone, press the Conference button to bring up conference dialing screen.

2. Dial the third party number followed by SEND key.

3. When the call is established to the third party, press the ConfCall soft key to initiate 3 -way conference.

Cancel a Conference Call:

1. On your desk phone, press Cancel soft key on the conference dialing screen to resume the two-way conversation.
   

Hold The Conference:

1. On your desk phone, press Hold button to hold the conference call. This puts all the parties involved on hold.

2. Press ReConf soft key to resume the conference call; or select the corresponding blinking LINE to speak with an individual party.

End The Conference:

1.  Hang up or press the soft key for the  EndCall option on the Grandstream device. The conference will be terminated for all three parties.

Voicemail message 

1. On your desk phone, a blinking red MWI (Message Waiting Indicator) indicates a message is waiting.

2. Press the Message button to retrieve the message. An IVR will prompt you through the process of message retrieval.

3. Press a specific LINE to retrieve messages for a specific line account.

Listening to the new Zoho Voice voicemails

Mute/Delete 

1. On your desk phone, press the MUTE button to mute/ unmute the microphone.

2. The Mute icon indicates whether the microphone is muted.

Volume adjustments

1. Use the volume controls on your desk phone to adjust the ring volume when the phone is idle.

2. Press the volume controls during an active call to adjust the call volume.