You may be right that some people are tricked into thinking the call has been terminated by the caller, when in fact the caller is playing a dial tone over the

You may be right that some people are tricked into thinking the call has been terminated by the caller, when in fact the caller is playing a dial tone over the line. It's worse than that though. In some telephone systems, the call is not ended when the callee hangs up. https://security.stackexchange.com/questions/100268/does-hanging-up-on-a-uk-landline-call-not-terminate-the-connection https://security.stackexchange.com/questions/100268/does-han...