Business Phone Line Rental

Redcentric offer a range of competitive business calls and line rental packages


  • Business Calls - highly competitive call tariffs typically saving you up to 40%
  • Line Rental – switch your existing PSTN, ISDN2 or ISDN30 business phone lines and save up to 20%
  • Support - our UK support team are available 24/7/365, and we offer a range of care levels with associated fault fix timescales

Business Calls

Without any changes to your existing business phone system, or your phone numbers, we can help you to significantly cut the cost of every outbound call you make without compromising the quality of your calls. Our Business Calls service offers some of the market’s most competitive business call tariffs to all destinations - our customers typically save up to 40%. The switch from your existing provider is fast and hassle-free, and usually completed in under 3 weeks. There is no need for any programming of your PBX or dialing any prefix, and no hardware investment is required. Also, BT's Select Services, such as Call Waiting and Optional Diversion, will still be available.


Redcentric offers the full complement of PSTN business landlines, ISDN2 & ISDN30 and DSL lines. We can also migrate your existing lines using Wholesale Line Rental.

Moving your ISDN and PSTN lines to Redcentric couldn’t be simpler, the switch from your existing supplier is fast and simple. We can migrate your existing voice estate, whether your sites have analogue lines, or digital services such as ISDN2, ISDN30, DSL, Private Circuits and Virtual Private Networks. You can keep your existing lines and your phone numbers don’t need to change.


Redcentric is vastly experienced in providing voice services, having migrated and managed many large and complex traditional voice estates during the last 20 years. We also offer some of the most competitive call tariffs and business line rental packages in the UK.

We don’t offer just a business / customer relationship, we offer partnership. We have a policy of “best advice always”, we offer a full review of your bill and a comprehensive report showing exactly where you can make savings on your business phone service. But that’s just the beginning, in the long-term we can advise and assist your organisation in its transition from traditional telephony services, to VoIP, Cloud Telephony, Unified Communications and collaboration services – and all the benefits of improved efficiency and productivity.

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Calls & Lines Case Studies