what is th most feasible way to make a link between a computer on one side and a vhf radio on the other side (comercial) not amateur
I can’t comment on the technical or legal aspect of it, but there are options on the amateur side. Again, I am not sure if it can be implemented for commercial.
Echo-link is the amateur standard for this. This uses amateur repeaters so commercial is out, but there may be a commercial equivalent.
Voice-Over-IP is the technology.
Google Voice-Over-IP, or VOIP. See what you come up with.
WHAT exactly are you trying to do? Talk PC to radio?