As I understand it doctors were prohibited from using their personal phones or devices for patient consultations due to HIPAA.
Trump did away with that one simple restriction and voila.
Gas_dr might have some clarifying or corrective comments on the subject.
Medicos have to account for their billable time using nationwide standard codes...the Telemed system or variants rely on software used by the Dr and patient to track that time, call log in time, call close time, all logged into IT sytem.
For example I've had to install apps for lab appointments for taking blood sample since Covid-19, blood draws are no longer done in offices. Need other apps for the telemed call to my Drs.
All these must be integrated into a uniform patient/info/billing system. Just changing Hippa doesn't provide a magic wand for overnight change.
What the net effects are, positive and negative, I could only guess at.