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From: csowden@compulink.co.uk (Chris Sowden)
Newsgroups: comp.dcom.telecom
Subject: Re: Turning Off Call Waiting Remotely
Message-ID: <14239@accuvax.nwu.edu>
Date: 1 Nov 90 18:56:00 GMT
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X-Telecom-Digest: Volume 10, Issue 782, Message 3 of 10


In the UK it is possible to recall dial tone on any line connected to
a digital exchange (which I think the majority now are).  The
secondary dial tone you get is identical to the primary dial tone.  In
the following, "R" means Recall or flash.

If you only pay for a basic service, I think you can only request
charge advice for the call in progress (R*40#).

If you pay for call waiting, you can turn call waiting on (R*43#) or
off (R#43#), drop the current call and answer a waiting call (R1),
switch between calls (R2) or reject a waiting call and turn call
waiting off (R0).

If you pay for three way calling, you can additionally set up a second
call (R number), set up a conference with two existing calls (R3),
disconnect the first party (R5) or disconnect the second party (R7).

To use the extra facilities, you need a tone phone.  If you recall
dial tone on a pulse phone and try dialling a number, you get dumped
straight back to the call you left.

Being able to recall dial tone does mean you get one useful feature
which works regardless of the type of phone, extras paid for or which
end originated the call.  If you recall dial tone and then put the
phone on hook, the exchange rings straight back (with single bursts of
ringing rather than the usual UK double bursts).  You can then move to
another extension to continue the call.


Chris Sowden