RE: Increasing the REN #

["Paul Gordon" <paul_gordon@xxxxxxx>]

While on the subject of the bell wire, following a couple of unwelcome 
late-night phone calls, I have been considering putting a switch in the
bell 
wire on the incoming line (most likely a relay controlled by the HA), to
enable me to instantly disable all internal phone ringing, but still leave
the phones operable if we want to dial out...

Is this feasible?

Paul G.







>From: "Keith Doxey" <ukha@xxxxxxx>
>Reply-To: ukha_d@xxxxxxx
>To: <ukha_d@xxxxxxx>
>Subject: RE: [ukha_d] Increasing the REN #
>Date: Tue, 19 Nov 2002 09:53:57 -0000
>
>Hi Mark,
>
>It is possible to go above the REN limit with no problems whatsoever.
:-)
>
>It is also possible to be below the REN limit and have problems with
>ringing
>on certain types of phones. :-(
>
>Many phones are marked as REN=1 when infact they draw so little
ringing
>current from the line that would actually be REN=0.1 etc.
>
>A socket with nothing plugged in has no effect whatsoever.
>
>If you remove the bell wire from terminal 3 and the phone stops ringing
>then
>you have removed its REN from the the line. Some phones also
physically
>disconnect the ringer when set to OFF which is a much easier way of
>reducing
>the REN.
>
>If you disconnect the bell wire and the phone still rings then it
was
>originally designed for the US market and does not strictly conform to
the
>UK 3 wire spec. If you have phones like that then the ringing
booster
>mentioned by others will not help as it merely applies a ringing signal
to
>the third wire.
>
>Hope that helps
>
>Keith
>
>www.diyha.co.uk
>www.kat5.tv
>
>
>-----Original Message-----
>From: Stainton-James, Mark (London) [mailto:stainmar@xxxxxxx]
>Sent: 19 November 2002 09:24
>To: ukha_d@xxxxxxx
>Subject: [ukha_d] Increasing the REN #
>
>
>I seem to be almost on the REN # limit for the phones in the house.
>
>There are also several other extensions but without phones plugged in
to
>them.
>
>if I remove the bell wire from some of the extensions does
>this reduce the REN for that phone, and free up more 'space' ?
>
>


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