Quote:
Originally Posted by Chris55000
What happened if you picked the phone up and carried on listening whilst any of these tones (apart from ringing–tone of course!) were in progress – did they carry on indefinitely?
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I wouldn't exclude ringing tone from the list, as there was (and still is) a limit to how long it will continue if the called party doesn't answer. I know this from times when I was trying to make contact with a place where I sometimes stay that didn't have a telephone, but there was a callbox outside, so it was a matter of letting it ring until someone happened to be within earshot of the box. My recollection is that it gave up after about fifty rings, but it depends on what exchange equipment is involved.