@Rick7892 , my therapist used the site The Simple, Free, and Secure Telemedicine Solution | Doxy.me

She set up her provider account, and sent me her specific link (i.e. https://doxy.me/janedoe). I clicked that link a couple minutes before my appointment and entered the password she assigned for me (which was my name). She officially started the video session from her end when she was ready. [I was in a virtual "waiting room" briefly before.] That simple.