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British Telecom ISDN 'Switch Off'

British Telecom (BT) has decided to end their PSTN and ISDN networks in favour of Internet Protocol (IP) voice servers. The transition will begin in 2020, with complete closure of the networks in

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Gemini Communications Ltd is a limited company registered in England and Wales. Registered office: 11 Petteril Side, Harraby Green Business Park, Harraby, Carlisle, Cumbria CA1 2SQ. Registered number: 05245581
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