How to 3-way Conference Call - Grandstream Phones


  1. Once you are in a call, press the button that has the icon showing three people.
  2. Dial the extension or the 10-digit number with whom you want to conference.
  3. Press the green "Dial" softkey under/beside your screen.
  4. Once you have the 3rd party on the line, press the "three people" button a second time.
  5. Press the blinking button beside the line key (the initial call). This will complete the connection.
If you are a customer of ours and have any questions or comments, give us a call or text at 423-509-8000 or send us an email at We are more than willing to answer any questions you might have.


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