Telephony & VoIP
Business phone systems and VoIP solutions
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GenXSolutions
GenXSolutions is a Milton Keynes-based IT and telecoms company, established in 2010, providing cloud-based VoIP business phone systems, managed IT services, website development and business broadband to companies across the UK. Acting as a single point of contact for phone systems, IT and procurement, its support engineers offer day-to-day IT and telecoms assistance alongside scalable unified communications solutions.
Genucom Ltd
Genucom Ltd supplies VoIP and IP telephony to businesses, delivering cloud and on-premise telecom solutions built on Mitel, Yeastar and 3CX platforms. Its services cover SIP trunking, unified communications with call management, voicemail-to-email and video conferencing, plus IT services, internet networking and ongoing support. Solutions are offered for small business, midsize and enterprise customers, alongside consultancy.
GeoNet Telecom Ltd
GeoNet Telecom Ltd, a Croydon-based telecommunications provider, supplies business communication services including global inbound numbers across 130+ countries, NATO-approved secure mobile communications via the Silentel app, SASE SD-WAN networking with integrated cloud security, unified communications through the myApps platform, and multilingual contact centre support in over 15 languages. It specialises in inbound number origination from India, China and Africa, including its India Single Number Service.
Gleesim.co.uk
Gleesim supplies mobile connectivity from its Livingston base, selling travel eSIMs covering more than 150 countries alongside business SIM-only plans on EE, O2 and Three networks. Its M2M and IoT range includes multi-carrier SIMs, fixed IP SIMs, 5G data SIMs, tracker and site cellular solutions, healthcare IoT SIMs and eSIM or physical SIM options for drones. The company also sells iPhones, Samsung handsets and tablet data plans.
Global Networks International Limited
Global Networks International has provided fixed-line telecommunications services to small and medium-sized businesses since 2003. From Crawley, it supplies telephone lines including analogue, ISDN2E, ISDN30 and SIP, hosted telephony on Horizon by Gamma and its own platform, non-geographic numbers, connectivity from ADSL to Ethernet leased lines and MPLS, installation and maintenance of Mitel, Cisco and Asterisk systems, plus Microsoft Office 365 licencing and migration.
Global Telecom Group Ltd
Global Telecom Group Ltd is a Watford-based business telecoms provider supplying UK companies with phone systems, hosted VoIP, and non-geographic numbers including 0800, 0300, 0871 and 0844 ranges. It also offers IVR services, BT line rental, number porting, network call recording and business broadband. The company reviews existing contracts, manages switching, and provides ongoing support from a UK-based team under a single point of contact.
Global Telesat Communications
Global Telesat Communications supplies satellite phones, satellite internet terminals, GPS trackers, two-way radios and locator beacons from brands including Iridium, Inmarsat, Thuraya, Starlink and Garmin. The Poole-based company sells prepaid and pay-monthly airtime SIM cards for these networks, plus IoT SIMs and modems, and offers short-term rental of satellite phones, Starlink kits, hotspots and tracking devices.
Gold Telecom Ltd
Gold Telecom Ltd has supplied telecoms services to UK businesses, schools, charities and public sector organisations since 1998, ranging from blue chip companies to small offices. Based in Kingston upon Thames, it provides line rental, calls, SoGEA and FTTP broadband, leased lines, SIP trunks, non-geographic numbers and hosted VoIP. Its hosted VoIP solutions combine office extensions with home softphones and mobile apps to support hybrid working.
Good Connections Telecom Ltd
Good Connections Telecom is a Wakefield-based telecommunications provider serving SMEs and sole traders across West Yorkshire. It supplies business mobiles, business broadband, leased lines and VoIP solutions, with account management tailored to each client's budget and requirements. The company also offers free telecoms audits, reviewing existing voice and connectivity arrangements to recommend upgrades or savings, and provides ongoing support throughout the contract term.
Gps Telecom
GPS Telecom is a Warrington-based network and communication delivery specialist providing VoIP telephony and hosted phone systems, high speed internet over leased line fibre, 4G and 5G bonded networks, business mobile and unified communications including Microsoft Teams direct routing. It also offers IoT monitoring, telecom data analytics, cyber security and hybrid working solutions, serving sectors such as retail, education, health, manufacturing and the public sector.
Green Call Ltd
Green Call Ltd operates GreenCall, a teleconferencing service that calculates the carbon emissions saved by meeting by phone instead of travelling, issuing a Carbon Certificate usable in tenders and carbon accounting. Users register by email for a PIN and dial-in number, with international dial-in numbers across Europe, the USA and South Africa. Plans include free GreenCall Light for up to 80 participants, Standard for up to 1,000, and Professional.
Green Telecom
Green Telecom supplies and maintains business telephone systems, phone lines and internet connectivity to companies across the UK. Services include VoIP and hosted PBX telephone systems, standard lines, SIP trunks and digital lines, fibre broadband and leased lines, plus IT services, guest WiFi, remote working solutions and office relocation support. An approved BT Openreach communication provider for over 14 years, the company has traded since 1989 and offers maintenance and fault reporting.
Guru Technology Limited
Guru Technology Limited is a Northampton-based telecommunications provider serving businesses across the UK, with a focus on Northamptonshire. The company supplies business mobiles on SIM-only and handset packages, business phone systems, dedicated broadband and connectivity, managed IT services, security and surveillance systems with installation and maintenance, and renewables services including energy tariff comparison. Pricing examples include mobiles from £6.99 per user and broadband from £29.99 per month.
HBTel
HBTel provides business telecommunications services to small and medium-sized businesses and charities across Hampshire, Surrey, Berkshire and Dorset. Based in Romsey, the company supplies business phone systems, business mobile phones, connectivity and Microsoft Teams Calling, with support provided by telephone help desk, remote fixes or engineer site visits. It supports over 100 organisations in towns including Southampton, Winchester, Basingstoke, Guildford and Reading.
HG IT
HG IT delivers IT solutions to businesses from its base in Manchester, covering day-to-day technical support and proactive monitoring and maintenance. Its services include access control systems, telephony and VoIP, business internet connections, and cloud solutions designed to scale with growing businesses. The company is a Paxton Platinum Partner, a UniFi partner, a Smoothwall partner protecting schools, and a 3CX partner for telephony installation and support. HG IT states its plan is to keep delivering cost-effective IT solutions backed by expert support and long-term reliability.
HPR Consultants Ltd
Ipswich-based telecommunications provider serving businesses across Suffolk and East Anglia. HPR Consultants supplies business mobile contracts on O2, Vodafone and EE, bespoke landline solutions from single lines to multi-site phone systems, fibre broadband packages, and impartial energy contract searches. With over 20 years' experience in mobile communications, they match solutions to business needs rather than commission, supporting firms of all sizes with personal account support.
HQ Telecom
HQ Telecom provides business telephone and internet services, including landlines, broadband, mobile solutions, VoIP, inbound numbers, Ethernet (EFM) connections and international calling, available individually or as bundled phone and broadband packages. The company switches customers from existing providers, claiming savings of up to 60% on bills, and offers support including a broadband speed test, FAQs and online bill downloads from its Ruislip base.
Handset Solutions Ltd
Leeds-based online supplier of business and domestic telephony equipment. Sells system handsets for Avaya, Cisco, Mitel and Nortel platforms, analogue and cordless/DECT phones, VoIP/SIP handsets from Polycom, Yealink and Snom, Microsoft Teams phones, corded and wireless headsets from Jabra, Plantronics and Sennheiser, plus audio and video conferencing equipment, VoIP gateways, hosted PBX services and two-way radios.
Haven Communications
Cardiff-based telecoms company providing hosted cloud telephony, VoIP, connectivity solutions, mobile services, web listings and IT security services to businesses. Trading for over 27 years, it also offers service assurance products including broadband and line protection, site assurance, enhanced support and business continuity, alongside guidance on the Big Switch Off and broadband checks.
Haventrust
Haventrust combines IT support with finance, telecoms and consultancy services for businesses seeking to scale. The company's IT support ranges from general advice to a fully managed IT department, while its finance service provides resources to support a client's accounts function. Haventrust's telecoms offering covers a range of connected services aimed at reducing time and cost, and its consultancy service advises on business efficiency and competitiveness. The company operates from offices in Canary Wharf, London, and lists case studies and client and partner relationships on its website.
HiHi Limited
HiHi Limited provides a UK-made, UK-supported VoIP business phone system. Its platform includes deskphones, mobile apps, CRM integration, on-hold marketing, call reporting, call recording and AI-powered call insights. Solutions are tailored to small, medium and enterprise businesses, addressing needs such as remote working, call centre management, cloud telephony, database integration, remote customer service and call analytics.
Holbrook Telecom Limited
Holbrook Telecom is a Sheffield-based telecommunications provider supplying VoIP phone systems, mobile contracts and business internet to companies with five to five hundred employees. It offers Xelion and 3CX hosted PBX platforms, SIP trunks, SIM-only or handset deals on EE, BT, O2 and Vodafone, and connectivity from FTTC and FTTP to leased lines at up to 10Gbps. It also advises on the PSTN/ISDN switch-off and provides professional audio branding.
Hosted Connections
Hosted Connections provides cloud-based business telephony, including the Horizon hosted phone system and SIP trunks that replace ISDN lines for existing PBX equipment. It also supplies data connectivity ranging from broadband for home businesses to Ethernet and MPLS for multi-site organisations, alongside cloud compute and backup services. Operating from Bedford, the company has over 15 years in the communications industry with a team of trained engineers.
Hosted Telco
Hosted Telco supplies hosted VoIP telephone systems, telephone lines and internet broadband to small and medium-sized businesses in the UK. Its hosted PBX platform removes the need for on-site equipment while retaining standard call features, with free office-to-office calls over its cloud system. The company also provides voice and data circuits with access to major carriers, including ADSL, fibre and leased lines, plus unified communications services.
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