Telephony & VoIP
Business phone systems and VoIP solutions
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Choice Telecoms
Choice Telecoms is a Belfast-based telecommunications provider supplying business telecoms across voice, connectivity and mobile. Services include hosted voice and PhoneLine+ VoIP landline replacements ahead of the 2025 ISDN/PSTN switch-off, fibre broadband, SoGEA and dedicated ethernet connections, plus mobile SIMs, IoT SIMs and handsets. UK-based technical support teams assist customers with speed issues and outages, with a single point of contact.
Citrus Telecom Ltd
Citrus Telecom is a licensed UK communications provider, established in 1999, operating as a network operator with carrier interconnects to BT IPX, Vodafone, Gamma and Verizon. It delivers hosted VoIP phone systems, SIP trunking, UK and international numbering with inbound call management, call recording and PCI compliant payments, all hosted across three resilient UK datacentres. Its DigiDesk platform provides multi-channel hosted contact centre solutions to businesses including contact centres.
City Communications
City Communications is a family-run Nottingham business helping companies of any size unify their web, telecoms and IT services. Its telecoms range covers the City Cloud Phone hosted system, business broadband, Ethernet point-to-point links and business mobile. It also designs and manages websites, provides domain names, hosting and SEO, and offers managed IT support including Microsoft 365, endpoint security and email signature management. No-obligation consultancy is available.
Citytalk Group Limited
Citytalk Group supplies business telecommunications, internet, IT and security services from Aylesbury. Its offerings cover business broadband, fibre and leased lines, SoGEA connections, hosted and Ericsson-LG phone systems including the MiCom Cloud platform, plus telecoms maintenance. IT services include managed support, Microsoft 365 and Azure, IT security and Cyber Essentials compliance. Security provision covers CCTV, intruder alarms, access control, Ajax Systems and vehicle tracking for commercial premises.
Clear Telecom & Data Ltd
Clear Telecom & Data is an Essex-based telecommunications provider serving businesses since 2003. The company supplies and supports VoIP and hosted phone systems, SIP trunks, Microsoft Teams integration, broadband, leased lines and mobile services, alongside IT support. It helps businesses prepare for the Openreach network switch-off, assessing existing setups and managing migration to digital telephony with minimal disruption.
Clear Vision Communications Ltd
Clear Vision Communications is a Birmingham-based business mobile and telecommunications provider with over 15 years' experience. An approved stockist for O2, EE, Vodafone, Three and Plan.com, it supplies business mobile tariffs, fixed line phone services, mobile broadband, fibre and wireless connectivity, virtual landlines, cloud solutions and mobile device management (MDM). Dedicated account managers provide billing reviews and tariff advice for organisations of all sizes.
ClearComms Group Limited
ClearComms Group provides business telecoms and IT solutions to organisations across the UK from its Warrington base. Services include business broadband, hosted VoIP, connectivity, mobile communications, managed IT support and business utilities. The company combines these services under one account, offering streamlined support, simplified billing and tailored solutions aimed at improving efficiency and reducing costs. It also serves the education sector.
Clearfone
Clearfone is a Telford-based telecommunications provider supplying flexible VoIP phone systems, mobile plans with 5G IoT SIMs and device management, broadband and leased line connectivity, and multichannel contact centre solutions. The company also prepares businesses for the BT analogue switch-off through VoIP and full fibre upgrades, and sources competitive gas and electricity rates for commercial customers.
Clearpath Telecom ltd
Clearpath Telecom supplies VoIP phone systems to businesses, offering hosted VoIP, cloud-based PBX and onsite engineering alongside voice, data and internet solutions. Drawing on over 20 years of telecoms experience, the company provides expert advice, clear pricing and personalised support tailored to each client's business requirements.
CloudScape Connect Limited
Loughborough-based provider of VoIP phone lines and fibre broadband, offering SOGEA and full fibre to the premises (FTTP) connections through Openreach, Vodafone, Cityfibre and rural fibre networks. VoIP line rental starts at £6.60 per month and fibre broadband at £27.60 per month, with 1:1 contention and no speed throttling. The company also provides email, hosting, software and support services.
Cloudscape Network Systems
Cloudscape Network Systems supplies telecom services to businesses across Central London, drawing on over twenty years' experience. The company installs on-site and hosted telephone systems, provides telephone engineering and maintenance, data wiring including Cat 5/6 ethernet cabling, internet provision, CCTV systems and video conferencing. It also advises clients on choosing between in-house equipment bought outright and cloud-based systems charged monthly.
Coates IT
Coates IT supports small and medium businesses across East and Central Scotland - we offer IT support, managed backups, wifi and telephone systems. Working from home is our speciality.
ComXo - Switchboard and Managed Services
ComXo provides outsourced switchboard and managed communication services, combining trained operators with technology to handle client calls for professional service firms, particularly in the legal sector. Its solutions include rapid response lines for crisis or VIP calls, secure workplace helplines giving employees 24/7 access to support, and room and desk booking management with analytics on space utilisation. The company also offers a switchboard cost calculator and a customisable business service app.
Comm-Tech Voice & Data Ltd
Comm-Tech Voice & Data is a Norwich-based business communications provider trading for over 39 years. It supplies hosted VoIP telephony, business phone systems, SIP trunks and Microsoft Teams phone systems, plus business broadband, leased lines, managed WiFi, SD-WAN and bonded networks. The company also provides multi-network mobile SIM solutions, managed IT services including Microsoft 365, cyber security such as managed firewalls and simulated phishing, and IoT connectivity for businesses across the UK.
Comms Connect
Comms Connect is a St Albans-based business telecoms provider offering VoIP and cloud phone systems (Cisco Webex, Gamma Horizon), business mobile contracts and SIM-only deals on EE, O2, Vodafone and Three, plus fibre broadband, leased lines and 5G connectivity. It also supplies 4G/5G data and IoT SIMs, structured cabling, CCTV, device management and cyber security services for UK businesses, with over 25 years' experience.
Comms Consult
Comms Consult is a Bolton-based telecommunications provider supplying business phone systems and broadband services. It offers VoIP telephony with unlimited local and national calls, international calls to selected countries, and high-speed broadband plans with unlimited data usage. Bundled packages combine phone and internet services. The company also covers hosted telephony, cloud phone systems, call recording and hotel telephone solutions, serving businesses of all sizes.
Comms Direct
Comms Direct is a Londonderry-based telecommunications company providing wireless and bespoke broadband alongside cloud-based VoIP telephony to customers across the UK and Ireland. It also delivers internal network setup and B2B broadband solutions, with IT services offered through its website. Customers can sign up online or request a quote for network installation work.
Comms Source Ltd
Comms Source Ltd is a Blackburn-based telecommunications provider supplying business broadband, mobile SIM packages and cloud telephony. Its UV LINK hosted phone system delivers VoIP calling with auto attendants, digital faxing, voicemail-to-email and multi-device softphones, replacing ISDN lines. The company also provides managed cloud WiFi for indoor and outdoor environments, contactless payment acceptance without dedicated hardware, and international numbers spanning 78 countries.
CommsProvider
Halifax-based CommsProvider supplies end-to-end business communications, having begun in 2010 as a Yorkshire and Lancashire telephone systems supplier. It provides cloud telephony and VoIP, business mobile contracts across all UK networks, fibre and copper internet connectivity, unified communications, call recording and call centre software, plus data cabling, WiFi, surveillance and AV installation with managed support. Customers build modular packages, with optional office setup services such as furniture, computers and marketing.
Commswise
Oxford-based telecommunications company supplying and supporting business telephone systems, including on-premise and cloud-hosted VoIP platforms from manufacturers such as Panasonic, Samsung and Avaya. Also provides business broadband, leased lines, SIP trunks, ISDN lines, mobile deals via Vodafone and O2, 4G backup, homeworking solutions, WiFi and structured cabling (Cat5e to fibre). Operating for 30 years, with offices in Oxford and London.
Communicate Telecoms
Communicate Telecoms is a Chester-based telecommunications provider supplying hosted telephony solutions and connectivity to businesses. Its services cover business phone systems, business mobiles, business broadband and smart billing systems, with tailored products and ongoing support. The company offers free quotes and expert advice, operating from Suite 8, Meyer House, City Road, Chester.
Communications Infrastructure Networks
Communications Infrastructure Networks (CIN) is a British telecommunications infrastructure company that owns and manages purpose-built streetside infrastructure assets in urban environments. The assets enable mobile network operators to position radio equipment for 4G and 5G coverage and capacity where and when it is needed, improving network performance and end-customer experience. CIN is active in major UK cities and is expanding internationally, seeking partners and new market opportunities worldwide. The company provides infrastructure for both established network operators scaling rapidly and for new entrants.
Communications South Ltd
Communications South Ltd is a Portsmouth-based telecommunications supplier, established in 1989, serving businesses across Hampshire, West Sussex and Surrey. It provides business telephone systems, on-premise and cloud voice solutions, SIP trunking, business broadband including SOGEA, FTTP and leased lines, structured cabling, WiFi, CCTV and access control, plus support and maintenance. The company also advises on the BT PSTN switch off.
Complete Communications Staffordshire
Complete Communications is an independent telecommunications provider based in Stoke-on-Trent serving businesses. It supplies tailored business mobile plans, feature-rich and cloud-based phone systems, business utilities management, vehicle tracking for fleet management, and IoT solutions connecting devices, systems and data. The company positions itself as a flexible, customer-focused alternative to traditional telecom providers, customising its plans to each client's requirements.
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