Sure lines & calls offers a range of cost effective and reliable voice connectivity options from traditional analogue telephone lines, ISDN, through to cloud based SIP trunks. We offer bespoke Plans including everything from local to International Calls and non–geographical numbers. Request a free of charge bill comparison and analysis to find out how much you can save with us. Sure SIP Connect Trunks provide cost effective and reliable voice connectivity for your PBX. With inclusive call packages and flexible contracts Port existing numbers over the Sure SIP platform and you can also choose any numbers from any part of the UK and portray a local presence. British Telecom plans to start phasing out ISDN lines as early as 2020 and a total closure of this network planned for 2025. – Don’t Panic ! Sure Business Systems are 100% committed to delivering a first class service that meets the need of our customers
Sure Voice
Sure SIP Trunks
Keep your own numbers
ISDN Switch off 2025
Key Benefits of the Service
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