25 Jul
2007
25 Jul
'07
1:21 a.m.
On 25/07/2007 02:16, Ensor wrote:
BTW Any idea when BT started "DTMF enabling"
exchanges (presumably that
came in with "System X")? I've got a vague recollection of requesting
tone dialling around 1988 give or take a year, and having to have my
number changed since only one of the five exchanges covering this area
at the time was a System X exchange.
I remember a colleague in Edinburgh getting a cordless that was DTMF
about 1985, and it worked on our exchange then. That's the earliest I
recall, but I don't know how long it might have worked for, before that.
--
Pete Peter Turnbull
Network Manager
University of York