How to make calls
You can set MiiTel as a call provider to HubSpot to make phone calls to the registered phone numbers. Please refer to Make calls with MiiTel Phone on Hubspot (click to call) for more information.
How to receive calls
Unfortunately, you will not be able to receive calls with MiiTel Phone for HubSpot due to the specifications of Hubspot.
Please use MiiTel Phone Chrome Extension or MiiTel Phone Desktop to receive calls.