- to telegraph (AHD: To make known (a feeling or an attitude, for example) by nonverbal means: telegraphed her derision with a smirk ). Also, as Jim added, "to reveal one's intentions without meaning to (a boxer who telegraphs his punches, f'rinstance). "
- telegraphic (AHD: Brief or concise: a telegraphic style of writing. )
- On the hook, off the hook
- Hang up
- And as he said, "Really, even dial tone."
Some time back, I'd been writing about software used to send emails (that is, "e-mail messages"). The two terms cc and bcc are still in wide use -- I can see them in Outlook 2003 right now. But how many people these days have ever held in their hands the "carbon" part of "carbon copy"? Only us old folks.
I would be surprised if there isn't a term for this kind of anachronism; the phenomenon happens all the time, and not just in high-tech. It's slightly odd, though, to watch it happen within one's adult life.