Telephony & VoIP
Business phone systems and VoIP solutions
Find partners
Business Telco Ltd
Business mobile specialist serving the Humber, Lincolnshire and Yorkshire region. The company compares EE, Vodafone, Three and O2 coverage at each of a client's addresses using Ofcom data, then recommends SIM-only plans matched to individual sites or teams. Services include free coverage checks, full mobile audits covering tariffs and contracts, multi-network arrangements, inclusive roaming for field staff, and named-account support without call centres.
CAN Solutions Ltd
CAN Solutions Ltd is an independent telecommunications provider based in Crewe, working with businesses of all sizes on mobile, fixed line and connectivity services. It arranges business mobile airtime plans, SIM-only contracts and hardware leasing across major UK networks, supplies on-site telephony and VoIP systems with monthly plans, and offers FTTC/FTTP, leased line and mobile broadband. The company also compares business energy tariffs from UK suppliers, including green energy options.
CBG Telecom Limited
CBG Telecom is a Newcastle upon Tyne-based telecommunications provider and a division of eBuying Group Limited. Acting as an intermediary, it uses its buying power to source mobile phones, hosted seats, telephone systems, connectivity and WiFi for businesses, aiming to reduce telecoms expenditure. It also supports the ISDN switch-off and sells SIM-only and handset contracts online. The company works particularly with hospitality, retail and charitable sector organisations.
CCOMM IT Solutions
CCOMM IT Solutions provides managed IT services for businesses, including 24/7 network monitoring, help desk support, system maintenance and hardware management. The company offers cybersecurity services covering threat detection, vulnerability testing, staff training and compliance support. Cloud services include data migration, Microsoft 365 setup and cloud backup. IT consulting covers technology strategy, IT roadmap planning, budget management and vendor oversight. Networks services cover secure connectivity and network performance, and connectivity services include VOIP calling across desk, laptop and mobile devices.
CFone Communications
CFone Communications delivers VoIP phone systems, broadband internet, cloud communication tools, and two-way radios. Serving businesses, education institutions, healthcare organisations, and hospitality providers across the UK, the company supplies hosted telecommunication solutions, enterprise phone hardware, and 24/7 live technical support.
CITYCOM UK LTD
Citycom is a Glasgow-based telecommunications provider serving business customers across the UK since 2012. It supplies business mobile tariffs, business broadband, portable MiFi internet devices and VoIP phone systems, with access to major networks including O2, Vodafone, EE and Three. Clients are supported by a dedicated account manager and a rapid response unit for urgent issues.
CMM Telecoms Ltd
CMM Telecoms provides business telecoms services to UK SMEs from Farnborough, combining mobiles, VoIP voice solutions and internet connectivity under one provider. An O2, EE and Vodafone certified partner with over 15 years' experience serving more than 500 businesses, it offers phone systems, IoT connectivity, IT support and device management, backed by UK-based phone, email and on-site support and free audits.
COLABR8
COLABR8 is a Paisley-based telecommunications and business services company providing data connectivity including full fibre, part fibre and leased lines, VoIP, SIP and Teams phone systems, and business mobile from O2, EE, Three and Vodafone. It also manages business electricity, gas, water, broadband, payment solutions and Hikvision CCTV, handling contracts, suppliers and renewals on clients' behalf to reduce admin and costs.
COM-TEL Telecom Ltd
COM-TEL Telecom Ltd is an Ofcom-registered internet telephony service provider based in Lincoln, supplying VoIP telephone systems to residential and business customers across the UK. The company offers SIP trunks, broadband solutions, Wi-Fi and networking, plus VoIP configured for Starlink satellite connections. Business plans include auto attendant, call recording, hunt groups, conferencing and mobile app integration, with support for migrating ahead of the 2027 PSTN switch-off.
CPT Telecom Limited
Gateshead-based telecoms company supplying and installing business telephone systems since 2003, with over thirty-five years' industry experience. Installs and maintains Panasonic, NEC and Avaya phone systems, hosted IP telephony on 3CX and Yeastar platforms, broadband connectivity, Hikvision CCTV and Starlink satellite installations. Offers pre-installation planning, tailored service contracts and ongoing maintenance, working with partners including Birmingham Telecom and Eclipse Wholesale for SIP lines.
CRE Group
CRE Group is a Crawley-based telecommunications provider supplying hosted VoIP phone systems from vendors including 8x8, Gamma, RingCentral and 3CX, alongside broadband connectivity, business mobiles, Microsoft 365 IT support, payment terminals and energy services. It specialises in telecoms with CRM integration for estate agencies and dental practices, offering call transcription, click-to-dial, on-hold marketing and contract terms of three to seven years.
CSS Digital
CSS Digital provides IT support, networking and VoIP telephone systems to small businesses. The company has over 20 years of experience in customer support and on-site service, covering PC support, network installation and configuration, multi-site connectivity, remote access for home workers, and Linux servers. Its clients include architects, property developers, sole traders, solicitors, opticians, estate agents, accountants, builders and legal cost draughtsmen. Support is available by telephone, email and through the company's contact page.
CTi Communications Ltd
CTi Communications supplies, installs and maintains telephone systems for businesses and homes in Cheltenham, Gloucester, Oxford and across the UK. Services include hosted cloud phone systems, SIP-to-ISDN and analogue-to-VoIP conversion, internet access, cabling and Wi-Fi, CCTV, networks with data backup, office applications, cloud computing and disaster recovery. The company also provides new and secondhand equipment, plus ongoing support and training.
Cables Direct
We are the UKs leading trade supplier of computer cables ranging from HDMI, AV, Data cables and much more. Next day delivery available on all orders.
Callsure Business Telephone Services
Callsure provides business telephony services from Slough, selling UK and international phone numbers including city, 03 and freephone ranges. Its VoIP platform delivers calls to smartphones, computers, VoIP handsets and landlines, with call forwarding, number porting and broadband services. Additional offerings include fax to email, live answering, handsets and voice prompts. Services are configured via an online control panel, with free configuration and UK-based support from 8am to 11pm daily.
Cambridge Network Solutions
Cambridge Network Solutions is a Cambridge-based IT support company providing business-class IT support and office server solutions to small and medium-sized companies. Services include file server solutions, online data backup, PC systems, VoIP telephone systems, network security and antivirus solutions, broadband, website design, cloud services, data recovery and structured data cabling. The company is based on Cowley Road, Cambridge, giving it access to businesses throughout the city and surrounding areas. Cambridge Network Solutions also supports start-up businesses with IT systems and infrastructure.
Catch Telecom Limited
Catch Telecom Limited is a Farnborough-based, privately owned supplier of mobile and fixed telecoms solutions to businesses across the UK. Founded in 2006, it provides mobile voice and broadband contracts, mobile device management, mobile voice recording, M2M and IoT connectivity, fixed line WLR and CPS services, hosted IP telephone systems, conference calling, business broadband including ADSL, FTTC and dedicated circuits, plus mobile hardware and finance.
Causeway Telecom Ltd
Causeway Telecom is a business telecommunications provider based in Coleraine, supplying hosted voice, landline services and phone systems including Horizon, Xelion and Collaborate. Its connectivity range covers fibre broadband, SoGEA, Ethernet and legacy internet services, alongside mobile SIMs, IoT SIMs and device management. The company offers 24/7 support, a single point of contact and one combined bill for all telecoms services to UK business customers.
Cedel Communications
Cedel Communications, established in 1987 and based in Londonderry, supplies and hires two-way radio systems for businesses across the North West. The company offers digital and analogue handportables, mobiles, repeaters, licensed and licence-free radios, plus headsets, batteries and accessories. Services include radio hire, vehicle installations, radio repair, and pub and shop alert systems. It also supplies and fits taximeters, including Digitax models, alongside brands such as Hytera and Caltta.
Change Connect Ltd
Change Connect Ltd is a Colchester-based telecommunications provider supplying on-premise and hosted telephone systems to businesses. Services cover VoIP and business phone systems, broadband and internet connectivity, business mobiles, 5G Wi-Fi solutions, plus IT services, CCTV, video conferencing, reprographics, fibre and cabling. The company also advises on the ISDN switch-off and works with sectors including logistics, education, estate agency, housing, manufacturing and food.
Chatter Telecommunications Ltd
Telecoms provider for small businesses in Hampshire, supplying business phone systems including hosted cloud VoIP, alongside broadband and connectivity, mobiles, hardware and headsets. Additional services cover on hold marketing, call recording and analytics, homeworking solutions and bespoke internal WiFi. Chatter manages installations and provides ongoing support, and offers start-ups local or non-geographical numbers at low entry cost.
Cherry & White
Cherry & White designs and delivers turnkey network solutions for business and critical national infrastructure from its Gloucestershire base. The product range includes onboard communication systems providing 4G, 5G, GPS and Wi-Fi connectivity, Rapid Wi-Fi portable all-in-one connectivity for remote and off-grid locations, cellular integration for networks where wired connections are impractical, frequency synchronisation across large geographic areas, and microwave communications for remote site backhaul. The company was recognised in Parliament by Alex McIntyre MP for its contribution to the UK defence sector.
Cheshire Telecom
Cheshire Telecom, now part of the labdesk group, provides cloud telephony, IT support and connectivity to businesses across Cheshire and the North West, with a specialism in multi-tenant business parks. Services include managed IT and helpdesk, Microsoft 365 and Copilot, cyber security and Cyber Essentials certification, leased lines and fibre, plus CRM rollout and AI readiness training.
Chiltern Telecom Ltd
Aylesbury-based telecommunications provider supplying business telephony and broadband services. Offerings include hosted VoIP, SIP trunks, 3CX phone systems and mobile services, alongside business broadband, IT support, network cabling, WiFi, CCTV and access control. The company also advises on the BT ISDN switch-off. With around 30 years in the industry, it serves organisations including the NHS, local councils, charities and businesses.
Showing 1465–1488 of 1908 providers
Search all 1908 providersAre you a Telephony & VoIP provider?
Get listed and reach thousands of potential customers looking for telephony & voip services.