I think the technical term for it is Caller ID. You text a message and your number shows up to the one receiving that text. All the company has to do then is Block the senders number. The technology has been there for years.
So, this requires people working for the company overseeing the voting to visually identify all of the phone calls coming in to register who the caller thinks won the debate? Or, is this being done by automatons? And, do you have any evidence that the company overseeing that polling information actually was using this technology? It’s one thing to say that the technology exists, and a completely different thing to demonstrate that it was implemented for these polling results. Proof would be a way to demonstrated the claim. Until then . . . (I’m waiting).