Telephony & VoIP
Business phone systems and VoIP solutions
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Juice Broadband
Poole-based internet service provider supplying residential and business connectivity across Bournemouth, Christchurch and Poole. Services include full fibre (FTTP and CityFibre FTTH), SoGEA broadband, fixed wireless access for premises without fibre, leased lines, managed Wi-Fi, private virtual circuits and VoIP phone line replacement. The company also offers WIDE-ISDN, letting businesses keep ISDN lines beyond Openreach's 2027 switch-off.
KCE Comms Ltd
KCE Comms is a Northern Ireland telecoms provider supplying business phone systems, mobiles and broadband to local companies. It offers hosted VoIP systems ahead of the 2027 ISDN switch-off, business mobile tariffs through Vodafone, O2, EE and Three, and broadband including SoGEA, FTTP and leased lines. Merchant services are also available. Support is provided 24/7 with a dedicated account manager.
KJL Group
KJL Group provides IT support, managed print, connectivity and cyber security services for UK businesses, with over 30 years of experience. Its offering includes IT support, managed print solutions, WiFi and connectivity, cyber security, hosting services, digital signage and AV technology, Microsoft 365 licensing, and telephony. The company serves sectors including automotive, construction, education, hospitality, logistics, insurance and the service sector. KJL Group runs its own hosted Azure environment and supports both on-site physical servers and cloud-based hosting for its clients.
KM Group Ltd
Looking to upgrade your existing structured data cabling network or build a new one, we can provide super-fast Cat5e, data cabling, fibre optic & Wi-Fi cabling
Kaizen Telecom Ltd
Kaizen Telecom provides business connectivity solutions including enterprise-grade VoIP voice communications, high-speed broadband and dedicated leased lines delivering speeds up to 10Gbps, and business mobile plans with unlimited data, international roaming and device management. Serving businesses and home working, the company operates from offices in Sheffield and London.
Kelk Comms Ltd
Kelk Comms Ltd is a Canterbury-based telecommunications engineer serving homes and businesses across Kent. It installs and maintains VoIP telephone systems, data cabling and wiring, repairs broadband faults, and supplies IP handsets, headsets and PoE switches. With over 30 years' experience, the company handles new installations, maintenance and repairs for domestic and commercial clients, and is approved by Kent County Council Trading Standards.
Key Solutions
Key Solutions, trading as KSL, provides hotel technology solutions covering telephony, WiFi, mobility over DECT and WiFi, IT and CCTV. The company has served hotels for more than 25 years, from global hotel brands to independent boutique properties, and offers 24/7 support with nationwide coverage. Its communications and mobility solutions aim to help hotel staff coordinate more effectively, while its WiFi network services target both guest connectivity and additional in-house services. Key Solutions also addresses hotel security through its CCTV and IT infrastructure offering.
King Comms
King Comms NI supplies and installs VoIP business telephone systems across the UK and Ireland. Based near Belfast, the company provides hosted PBX platforms, broadband and data cabling for small to medium sized businesses, with bespoke systems suited to call centres and hotels. Solutions run on BT infrastructure with 24/7 support, and the company also supplies Dahua thermal access and temperature measurement products.
Kingfisher Telecom Ltd
Kingfisher Telecom provides business connectivity including full fibre broadband, cloud-based VoIP telephony and dedicated leased lines. Packages run from 80Mb to 1Gb, serving small and medium-sized businesses and the public sector. It also offers guest WiFi and mobile SIM options, and operates a partner programme for independent resellers across the UK. Engineers install connections within seven to ten days of sign-up.
Kingston Telecom Solutions Ltd
Kingston Telecom Solutions Ltd is a Kingston upon Thames-based provider of IT and telecoms infrastructure for small and medium-sized businesses. The company compares quotes from wholesale Tier-1 network providers to supply business fibre broadband, leased lines, MPLS VPN/VPLS, hosted telephony, calls and lines, ISDN replacement via SIP, business mobile and network cabling, alongside IT support, cloud services and disaster recovery. It serves SMEs in single or multiple locations and those moving premises.
L B Telecom Ltd
Oldham-based telecommunications company supplying business telecoms, broadband, mobile and utilities. Installs and supports telephone systems, including IP telephony, for clients such as care homes, schools, garages and commercial offices, according to site testimonials. Also provides CCTV installation. Customers can register via its LBB portal and contact the team by phone or email.
LCC Communications
Family-owned telecommunications provider in Stockton-on-Tees, trading since 1996. Supplies business broadband, cloud telephony, cloud services and leased lines to UK businesses, with Horizon and PhoneLine Plus customer portals. Clients range from rural pharmacies and launderettes to local government. Following its January 2026 acquisition by Stream Networks Ltd, existing customer contracts and service continue unchanged.
LG Networks
LG Networks is a Romford-based provider of IT, VoIP and internet services for businesses. The company supplies business connectivity, VoIP telephony, cloud services, mobile, data cabling and CCTV installation. It works with small businesses and growing companies, tailoring systems to their needs and budget, and provides ongoing support. Clients include Renault Trucks UK, the Royal Opera House and Hashtag United.
LVL1
LVL1 provides tailored IT support and consultancy services for small businesses, charities, and growing teams. Based in Norwich, the organisation delivers managed IT support, systems development, network management, telephony systems, procurement, and security guidance to clients across the UK, operating either as an outsourced IT department or alongside existing in-house teams.
Lanonyx Telecom Ltd
Lanonyx Telecom supplies UK business phone numbers including 0800, 0843, 0845, 0333 and 01/02 geographic numbers, with routing to landlines or mobiles. Features include auto attendant/IVR, call whisper, fax to email, follow me, ring groups, time of day routing and voicemail to email. Same-day setup on weekday orders placed before 5pm, with free office-hours support.
Leasedline.io
UK leased line comparison and consultancy platform helping businesses find business connectivity solutions.
Leonti Communications UK Ltd
Leonti Communications supplies and installs business telephone systems including Yeastar, Panasonic and Samsung, alongside hosted VoIP, SIP trunks and mobile cellular services. The company also provides structured Cat5E/Cat6a cabling, CCTV installation and broadband/IT infrastructure for offices, with experience of multi-site and legacy system work. It serves businesses across London, Essex, Suffolk and the wider UK from its South Woodford base.
Lightning Fibre
Building a new FTTP broadband network across parts of Sussex and Kent for homes and businesses.
Link-Tel Communications Ltd
Link-Tel Communications Ltd is a Glasgow-based two-way radio dealer and authorised Motorola Solutions Gold partner, established in 1977. The company supplies licensed PMR, ATEX-rated, licence-free PMR446 and push-over-cellular radios, plus headsets, accessories, body-worn cameras and applications such as TRBOnet and SMC Gateway. Services include antenna networks, radio licensing, rental and hire, service and maintenance, retail schemes and waste electrical equipment certification.
LiveKit UK
Open-source WebRTC platform providing real-time audio, video, and data communication infrastructure for developers.
Livewire Voice & Data Communications
Livewire Voice & Data Communications provides telephony, network cabling and electrical installation, design and maintenance services from its office in Sutton, Greater London. The company offers independent, needs-based advice on complete communications solutions, alongside a full range of end-to-end network cabling. Additional services include security systems, access control and electric vehicle charging installation, delivered by certified electrical engineers. Livewire states it has installed home working capability for well over 100 offices across the UK, and has trained engineers to install Rointe low energy electric heating systems and EV charging points.
LoNAP (London Network Access Point)
London-based internet exchange point providing peering services to UK and international network operators.
Local Telecom Ltd
Leeds-based telecommunications company supplying connectivity, mobile, IP-based telephony and M2M/IoT services to businesses, with particular focus on education, healthcare and care sectors. An authorised partner of BT, EE, RingCentral and Daisy, the team has over 35 years' combined industry experience. Also provides fully managed IT support including a UK-based service desk, network monitoring and security analysis, and brokers UK business energy contracts. Offers advice on the 2025 landline switch off.
Loho Ltd
Loho Ltd is a Cambridge-based provider of networked services and consultancy with a focus on voice-over-IP and bespoke solutions. The company offers VoIP and SMS telecoms, IT and VoIP project consultancy, virtual machine hosting on Linux or Windows platforms, and web and email hosting at any scale. It also provides support services and is a member of the Internet Telephony Service Providers' Association (ITSPA).
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