We need to outlaw robocalling

We could do it with a state law.  Or a federal law if you thought the Congress would ever vote on anything. Many state legislatures are still interested in constituent service, unlike our noble Congresscritters. 
   Step 1 of such a law would be to require the telephone companies to implement a spoof proof caller ID system.  Today's caller ID can be easily spoofed by robocallers and spammers.  Making caller ID spoof proof would give us voters and small chance to not answer calls from numbers we never heard of.  Penalty of say $10,000 to the phone companies for each spoofed caller ID incident.
  Step 2 of such a law would define the felony of robocalling.  Placing a cold call to anyone and giving a pitch for any product or political party, candidate, or idea is robocalling.  Playing recording or speech from electronic devices to the victim is robocalling.  Uttering false hoods such as claiming to be calling from the IRS, Social Security, Microsoft, or any other  institution is robocalling.  Persons who place the call, who speak to the victim, who maintain or service the robocalling equipment are all robocallers and subject to the penalty of law.  People who support the robocaller[s] with workspace or money are guilty of robocalling.
Step 3 of such a law would spell out penalties for convicted robocallers.  I would suggest five years in jail for the first offense, and ten years for repeat offenses. 
  There is still a good deal of work to do, namely catching robocallers, after passage of an anti-robocalling law, but we must have the law making robocalling a felony before we can expect law enforcement to do anything about it.