List of Gamma Horizon Hosted Phone System Customers
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United Kingdom
Since 2010, our global team of researchers has been studying Gamma Horizon Hosted Phone System customers around the world, aggregating massive amounts of data points that form the basis of our forecast assumptions and perhaps the rise and fall of certain vendors and their products on a quarterly basis.
Each quarter our research team identifies companies that have purchased Gamma Horizon Hosted Phone System for PBX, VoiP and Phone Systems from public (Press Releases, Customer References, Testimonials, Case Studies and Success Stories) and proprietary sources, including the customer size, industry, location, implementation status, partner involvement, LOB Key Stakeholders and related IT decision-makers contact details.
Companies using Gamma Horizon Hosted Phone System for PBX, VoiP and Phone Systems include: Metro Bank, a United Kingdom based Banking and Financial Services organisation with 4040 employees and revenues of $669.0 million, Swan Housing Group, a United Kingdom based Construction and Real Estate organisation with 430 employees and revenues of $230.0 million, BES Utilities, a United Kingdom based Utilities organisation with 254 employees and revenues of $96.0 million, Keystone Law Group, a United Kingdom based Professional Services organisation with 63 employees and revenues of $90.0 million, Barrhead Travel, a United Kingdom based Professional Services organisation with 900 employees and revenues of $44.0 million and many others.
Contact us if you need a completed and verified list of companies using Gamma Horizon Hosted Phone System, including the breakdown by industry (21 Verticals), Geography (Region, Country, State, City), Company Size (Revenue, Employees, Asset) and related IT Decision Makers, Key Stakeholders, business and technology executives responsible for the software purchases.
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| Logo | Customer | Industry | Empl. | Revenue | Country | Vendor | Application | Category | When | SI | Insight |
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Barrhead Travel | Professional Services | 900 | $44M | United Kingdom | Gamma Telecom | Gamma Horizon Hosted Phone System | PBX, VoiP and Phone Systems | 2016 | n/a |
In 2016, Barrhead Travel implemented the Gamma Horizon Hosted Phone System. The Gamma Horizon Hosted Phone System was deployed as a hosted PBX solution, classified under PBX, VoiP and Phone Systems, to centralize voice communications across the organization.
Implementation activity focused on Horizon Phone system installation and system management, including handset provisioning, centralized call routing and voicemail administration, and configuration of multi-branch dial plans. Administration work leveraged internal scripting and operational tooling to support provisioning and ongoing management through the Horizon management console.
The deployment operated alongside Barrhead Travel's branch network estate of 33 locations and the homeworker population, administered by the IT team that managed Cisco Meraki MX appliances and Meraki WiFi access points. Operational coverage included branch voice connectivity, homeworker telephony, and support for the companys managed travel partners, aligning the PBX, VoiP and Phone Systems solution with existing network infrastructure and support processes.
Governance and runbook responsibilities were held by an eight person IT department with a Senior IT Systems Engineer as the escalation point, who managed the helpdesk, backup operations, asset management rollouts and an internal knowledge base. Weekly director level reports and structured rollout processes were part of operational oversight and ongoing system management.
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BES Utilities | Utilities | 254 | $96M | United Kingdom | Gamma Telecom | Gamma Horizon Hosted Phone System | PBX, VoiP and Phone Systems | 2018 | n/a |
In 2018, BES Utilities implemented Gamma Horizon Hosted Phone System in the PBX, VoiP and Phone Systems category to centralize telephony for office and field workers across the BES Group. The deployment was positioned to provide hosted PBX services for BES Utilities while coexisting with the companys broader IT estate supporting Smart Choice Metering, Card Saver and Commercial Power.
Gamma Horizon Hosted Phone System was configured to deliver standard hosted telephony capabilities, including centralized call routing, voicemail, auto attendant, handset provisioning, hunt groups and soft client support for mobile and desktop endpoints. Configuration work included provisioning IP handsets and soft clients, aligning extension and directory structures with corporate user accounts, and applying role based dial plans consistent with utility operations and field workforce connectivity needs.
The Horizon deployment was implemented into an environment managed with Windows Server 2012 and 2016, Active Directory, Microsoft Exchange and Office 365, and operated on a corporate network managed by UniFi networking equipment. Operational integration and support workflows referenced in operational notes included device lifecycle management for field iOS and Android devices via MMD Scalefusion, asset discovery via Lansweeper, and co‑operation with the existing Citrix VDI footprint for office endpoint access.
Operational governance for the Gamma Horizon Hosted Phone System relied on the companys IT support model, including incident management through Freshservice tickets, remote troubleshooting with TeamViewer and AnyDesk, and internal IT training for office and field staff. Day to day administration and maintenance responsibilities were embedded in BES Groups IT function, covering handset provisioning, network quality monitoring, license and spare parts management, and escalation procedures for third party cloud and ISP related incidents.
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Keystone Law Group | Professional Services | 63 | $90M | United Kingdom | Gamma Telecom | Gamma Horizon Hosted Phone System | PBX, VoiP and Phone Systems | 2020 | n/a |
In 2020 Keystone Law Group deployed the Gamma Horizon Hosted Phone System as its primary telephony platform, information the firm publishes on its website. The deployment is aligned with the firm’s UK professional services footprint and is categorized under PBX, VoiP and Phone Systems, providing a cloud hosted telephony layer for an organization of approximately 63 employees.
Keystone Law Group’s implementation centers on a hosted PBX architecture using the Gamma Horizon Hosted Phone System with centralized management and multi‑device support, including desk handsets and soft clients for mobile and remote users. Functional capabilities implemented include call routing and auto attendant, hunt groups and call queues, voicemail and unified messaging, handset provisioning and user administration via the vendor portal, and basic call reporting and monitoring. Operational coverage spans firmwide business functions such as reception and client intake, fee earner communications, and administrative teams, with governance delivered through centralized admin roles and phone provisioning workflows to standardize call handling and access controls.
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Banking and Financial Services | 4040 | $669M | United Kingdom | Gamma Telecom | Gamma Horizon Hosted Phone System | PBX, VoiP and Phone Systems | 2019 | n/a |
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Construction and Real Estate | 430 | $230M | United Kingdom | Gamma Telecom | Gamma Horizon Hosted Phone System | PBX, VoiP and Phone Systems | 2017 | n/a |
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