Avoncroft Museum located at Bromsgrove, Worcestershire houses the BT National Telephone Kiosk collection and a number of working telephone exchanges. However few ex-employees seem to be aware of its existence, which is a great shame.
The main feature is a working UAX13, the workhorse of village telephone exchanges during the fifties, sixties and seventies. Over 2,500 were in the network at their peak in the sixties. Complete with its wooden building, the exchange from Stapleford in Essex was moved to Avoncroft in its entirety and rewired on site. Also on site is a working mobile TXE2 exchange in a trailer and a working Mobile Non-Director eXchange MNDX
Within the UAX building is a UAX5, first introduced in 1929, this working example, originally from the village of Longworth in Oxfordshire, was made redundant in 1932 when it was replaced by a UAX12. The UAX5 serves 25 customers with a two digit numbering scheme. Only four calls can be in progress at any one time. There was no 999 service, but for this and calls to any other exchange, the code 01 gave access to the GPO Operator in a nearby town, to complete the call.
Surrounding the exchanges are telephone boxes of all vintages charting the history of public phone box development in the U.K. As well as public boxes, there are police pillars too. A popular feature with the visitors is a Police Box from Glasgow, looking very much like the TARDIS from the BBC's Doctor Who series. There are a variety of AA and RAC roadside boxes, originally for use for free, by means of a special member's key.
Avoncroft is a large open air museum featuring many restored buildings and a working windmill. For opening times, please consult their website.