[comp.dcom.telecom] Ringback that just won't quit

eli@ursa-major.SPDCC.COM (Steve Elias) (01/30/89)

10 or 15 years ago, in a suburban boston exchange, a friend and
i discovered ringback codes...  981-xxxx worked in our area...
here's where things get strange:
sometimes the ringback just would not stop.  you could pick up
the phone, leave it offhook for a minute, hang up -- and the
ringback would start again...
and even stranger:  sometimes, the ringback would be a continous
ring -- not the normal intermittent bell.  this didn't happen very often...

steve elias
(eli@spdcc.com)