[aidenn0]

This is incorrect at least on Bell Atlantic's (and then Verizon's) network in the late 90s. Since there is no double-billing on landlines in the US, the person initiating the call is the only one that can immediately terminate a call to a landline. There's a timeout for the reverse direction, but it at least used to be fairly long.

Someone pulled a trick where they took advantage of this. Had a friend call and keep the line open. Then claim that you have the entire phone book memorized. To prove it, ask someone to name a random name, punch in 7 digits and hand it off to the person who named it. They ask for the name and your friend says "yes that's me" (or "they're not home now if the gender mismatches).

[techsupporter]

> There's a timeout for the reverse direction, but it at least used to be fairly long.

This brings up one of those cultural things: ever noticed how in movies and TV shows from the 80s and 90s, if the caller hung up, the person called immediately got a dial tone?

It's a trope that prop wranglers, set designers, and writers picked up because the telephone company around Los Angeles (Pacific Bell) had switches that would reset the line state for the destionation back to "ready for call", which meant dial tone, when the origin side disconnected. If the destination side disconnected, the origin would only be disconnected after approximately 20 seconds.

Almost all other exchanges would put the destination--after the origin disconnects--into an off-hook-but-not-ready and then, after 10 or so seconds, play the "if you'd like to make a call, please hang up and try again" recording, then Special Information Tones, then a rapid busy.

Yet because the service in and around LA is what a lot of people in the TV and movie business experienced, it is what got baked into those productions.

[aidenn0]

> rapid busy

I was a rather violent sleeper when I was young and would occasionally knock the phone off the hook while sleeping. Then I woke up to the fairly loud rapid busy sound. Hadn't thought about that a while.

[TheKarateKid]

Interesting. I always assumed that the immediate dial tone after origin disconnected in movies & TV was for dramatic effect to let watchers know that the person hung up the phone.

[IIsi50MHz]

Now that you mention it, I did vaguely used wonder why some phones took longer to hang up than others. Some, I would hear the receiver go onto its rest, and 'immediately' hear a dial tone. Some, it took a few seconds.

Related to what some other commenters pointed out…

- The delay did seem to get longer when call-waiting became avaliable in an area.

- Sometimes, right after pressing your own hook and then releasing it, I could not dial; I had to wait a couple seconds.

- I never used a system where you could hang up and have time to run to another extension, but I may have known a couple people who claimed they could? If so, I probably dismissed it as "weird".

- My direct experiences were with various regions of just three Bells, so another commenter's remarks about LA/PacBell were interesting.

Thanks, everybody, for jogging my memory a bit.