One time (about 35 years ago) I had to fix a 45 year old intercom with a couple of external extensions on armoured (po style) cable. The cables to the extension had been labelled in a junction box with tie on labels. Should have been easy to identify, but decorators had been along, and carefully painted each side of the labels! Curses!
In message , snipped-for-privacy@privacy.net writes
Decorators are a strange breed of people. Last year I went to service a radio base station that was located in a tank room on top of a tower block. The decorators had been in and presumably told to paint "all the metalwork" with a thick grey paint. They had, including £2.000:00 worth of radio. Including the front panel and LEDs.
If not all the wires are working then you can get 2-wire bus systems, that don't need an independent call wire to each flat.
Terraneo, Urmet (although I'm not too keen on Urmet panels, the legend glasses can get pushed in too easily), Farfisa etc are all much of a muchness, the Italians have pretty much cornered the market.
Redid this building with Terraneo stuff. I think they use carbon xmtrs though, and power the speech module through the transmitter. Got the door panel specially made to size and imported from Italy. (Don't know how much - landlord paid.)
For larger installs I quite like bpt for facilities available, but the handsets feel a bit plasticcy.
Personally I would always use an engraved vandal-resistant panel rather than one with legend glasses, I just think they look neater. You can usually use most manufacturer's speech module inside a generic panel.
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