Because both ends of the landline call need to be regulated. It has nothing to do with the computer aspect of it.
And aren't all you guys cheering on regulation the same people who would cry murder if they were trying to regulate the Internet?
You are confusing regulation on the content (free speech) with regulation of the transport (access to communication).
Money is truthful. If a man speaks of his honor, make him pay cash. -- Lazarus Long