Calling Collect On A Payphone
| Field | Communications |
| Went Obsolete | Not obsolete but becoming rare |
| Made Obsolete By | Ubiquitous cell phones |
| Knowledge Assumed | Dialing "0" |
| When useful | Stranded with a dead cell phone |
When caught without change for a phone call, people used to "call collect", which goes through an operator to charge the call to the receiving party at a much higher rate.
Sorry to say but while much rarer, most countries still have networks that support reverse charging. Payphones on the other hand are becoming increasingly rare.