It started taking longer in the 90s to 00s, I don't know why. But back in the 80s if the other side hung up, they could pick up the handset again in a few seco

It started taking longer in the 90s to 00s, I don't know why. But back in the 80s if the other side hung up, they could pick up the handset again in a few seconds and keep talking to you, since it was a physically switched connection. But it didn't take too many seconds (maybe 10?) for the phone company switches to disconnect and throw a busy tone.