I'm after a phone. Requirements:
External (i.e. weatherproof). One button (dials preprogrammed number). Normal two wire phone (want to connect it to a phone system). No door release or anything famncy needed. One piece (needs to be reasonably vandal proof). Not IP based. Not stupidly expensive.
Nearly all the ones I can find are part of an internal/external pair. I just want a basic phone!
Any ideas, please?
panasonic do such BUT they require a special card in a PABX...
how did you intend connecting it to a phone system?
Probably easier done with the PABX, i.e. just go off hook.
Probably incompatible with other requirements :-(.
To the back of an SPA8000.
An external version of a supermarket 'taxi' phone?
I'm guessing these:
Not as stupidly expensive as the 170 quid plus vat flashing light above it!
I only want it for our front door....!
Don't know the price but this would work...
I'm after a phone. Requirements:
External (i.e. weatherproof). One button (dials preprogrammed number). Normal two wire phone (want to connect it to a phone system). No door release or anything famncy needed. One piece (needs to be reasonably vandal proof). Not IP based. Not stupidly expensive.
Nearly all the ones I can find are part of an internal/external pair. I just want a basic phone!
Any ideas, please?
Get the cheapest speakerphone you can find, take it apart, and rebuild it in a suitable metal / ip65 box?
Although I'm not sure how you waterproof the speaker and mic.
Rgds
Denis McMahon
Right.... so theres no assistance from there in terms of autodialling or routing.
I thought you were asking electrically.
I need the phone to dial a number - any number. The SPA2000 is registered with an Asterisk box so I can deal with that.
A variation on a theme would be to buy a cheap speakerphone, and a cheap intercom phone, and put the speakerphone internals in the intercom case, using the existing microphone, speaker and button. Wire the button to a speeddial position on the keypad. Then you have a PSTN-capable doorphone.
Theo
Now there's an idea. Although I'm sure I could find a uitable metal case...
If you want true single-button operation, though, you need to automate the off-hook button and the memory dial button, and have a timer to go on-hook a reasonable time later. Could be done by relays and a small timer circuit.
The doorphone speakerphones usually have a call timer and also detect 'calling party clear' from the phone line, which ordinary ones don't.
My IP phone, on the other hand, will go 'off-hook', sieze a 'line' and dial out, at the press of one button, and clear down at the end of a call automatically. It can also be set to auto-answer on incoming. It may be useful, if the person 'inside' has cleared down or lost the door call, to be able to phone back to the door. All that would be needed would be to take a cheap IP speakerphone and extend the mic/ speaker/button and optionally LED wires (so 6 or 8 wires) to the components in a door box.
Given that it's going to attach to an IP system, I woudln't discount the use of IP (unless there are other reasons). Yealink T20P will do handsfree for 63.00 inc VAT from Voipon; I'm sure there are cheaper to be had.
Owain
Not a speakerphone, and needs some TLC, but
No connection with the seller
Owain
I thought of something like that, but the separate receiver is vandal- sensitive!
Good point. Could do that.
The wiring is already there, and very difficult to add more. 6 pairs, with 3 of them telephone cable (lightly twisted). The other 3 pais are even less suitable...!
I might end up building something...
3 twisted pairs ample for mic/speaker/button. The IP phone itself can live somewhere nice and warm inside with access to ethernet.
Owain
These were very good, expensive again and discontinued now:
Bob Eager wrote
I see you can get a waterproof ruggedised mobile for a not stupid price.
[Amazon.co.uk] JCB Toughphone Tradesman TP121 at 60 GBPMight be a good idea if you had a really really long driveway.
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