The UK Home Automation Archive

Archive Home
Group Home
Search Archive


Advanced Search

The UKHA-ARCHIVE IS CEASING OPERATIONS 31 DEC 2024

Latest message you have seen: RE: RF Keyboard Range?


[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Re: internal phone systems..



 
is a good page on how to extend the wiring for ISDN.  It is probably worth browsing Peter's other pages as well.
----- Original Message -----
Sent: Sunday, July 15, 2001 10:19 PM
Subject: RE: [ukha_d] Re: internal phone systems..

Any one know how to daisy chain ISDN2E

I have one socket going t my exchange

The other goes t a bridge

I would link t add a third outlet for my portable which has an ISDN card s that I can set it up ay home

Any ideas

thanks

 

 

Mike

 

Sent from Home

 

-----Original Message-----
From: patrickl@xxxxxxx [mailto:patrickl@xxxxxxx]
Sent: Sun 15 Jul 01 21:58
To: ukha_d@xxxxxxxSubject: [ukha_d] Re: internal phone systems..

 


The cybergear gold is a very nice piece of kit for ISDN use. It will
support the delivery of CLI (caller id) t ordinary analogue
handsets, which is unusual. (ISDN exchanges will support
both "ordinary" analogue handsets with the correct adapter, or
digital ISDN handsets which can be extortionately expensive, and may
require independent power).

For conventional analogue lines, the Olychrom (sp?) is well thought
of. Solwise (www.solwise.co.uk) also carry a reasonable range. Expect
to pay 200-300 for a 2+8 configuration (2 exchange lines routed to 8
extensions).

If you use an analogue modem, be aware that the cheaper PBX's may
limit your maximum connection speed. I don't know of any 2+8 PBX's
which support CLI, although there are 1+4's which do.

If you are adventurous, it's well worth trawling the second hand
office market for an old PBX - but be wary of any which aren't
supplied with full user and installation documentation. Avoid the BT
Ambassador exchanges, which are very common on the second hand
market, but only work with special handsets and are
particularly "clunky" to use.

In all cases, you will need to star wire your extensions (ie home
runs from the point where you install the exchange) - in contrast t
the usual daisy chain. When using analogue handsets (as opposed to
ISDN), 2 wires are sufficient (pins 2 & 5 on the BT socket) - but you
will need to fit a master socket t each extension t ensure the
handset rings correctly. For details of how to wire digital ISDN
handsets, look at Peter Strangman's home page
(www.adelheid.demon.co.uk). He also has a useful comparison chart t
assist in selecting PBX's and a list of vendors.

Until recently it used to be a BT requirement t have a PBX
maintained by an approved installer. This is no longer the case,
although some suppliers may try to brow beat you into submission.

Finally, you may want t make special provision for power cuts -
either a handset directly wired to the exchange line, or a UPS t
power the exchange. Some (most?) exchanges will provide "pass
through" in the case of failure, connecting a specific extension t
the exchange in the case of powerloss.

HTH

Patrick



--- In ukha_d@y..., "John McManus" <john.mcmanus@b...> wrote:
> This would probably most easily be done by a PBX (private branch
exchange).
> There may well be ones out there that support normal analogue
exchange lines
> ... but I only have experience of the ISDN variety.
>
> The PBX that I have is from Network Alchemy... it takes 2 ISDN2e
circuits (4
> channels) and provides 16 extensions.  They also do an entry model
> (Cybergear Gold) for about £300? that takes an ISDN2e / Home
Highway in and
> provides 6 extensions out (for your normal house phones).  With the
> Cybergear you can call from one extension t another, transfer
calls, have
> hunt groups etc.  Can also act as a (simple) ISDN router.  It
provides TAPI
> integration t the PC desktop, PC based voice mail and lots of
other stuff.
>
> There are a number of other systems that have similar
functionality... but I
> don't know much about them.





____________________________________
Automated Home UK
http://www.automatedhome.co.uk
____________________________________


Your use of Yahoo! Groups is subject t the Yahoo! Terms of Service.





____________________________________
Automated Home UK
http://www.automatedhome.co.uk
____________________________________


Your use of Yahoo! Groups is subject t the Yahoo! Terms of Service.



____________________________________
Automated Home UK
http://www.automatedhome.co.uk
____________________________________


Your use of Yahoo! Groups is subject t the Yahoo! Terms of Service.

Home | Main Index | Thread Index

Comments to the Webmaster are always welcomed, please use this contact form . Note that as this site is a mailing list archive, the Webmaster has no control over the contents of the messages. Comments about message content should be directed to the relevant mailing list.