Calls
24 Seven (operated by Calls) is a Leeds-based UK business telecommunications provider offering the 24 Seven Platform — a hosted voice and unified communications service for UK businesses, with account and telephone-number-based authentication.
- Company typePrivate
- Founded-
- Headquarters—
- Headcount11–50
- GTM typeB2B
- OfferingServices
Calls firmographics
Firmographics- Name
- Calls
- Website
- https://calls.24seven.co.uk
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- 24 Seven (operated by Calls) is a Leeds-based UK business telecommunications provider offering the 24 Seven Platform — a hosted voice and unified communications service for UK businesses, with account and telephone-number-based authentication.
- Ownership category
- akta.pro rank
Calls industry classification
Industry- Product category
- Business Telecommunications
- NAICS
- Wired and Wireless Telecommunications (except Satellite) (5171)
- SIC
- Telephone Communications (No Radiotelephone) (4813)
- akta.pro primary industry
- Numbering, DID, Porting & Carrier-of-Record Services (HDAIAHAK)
Keywords
Calls business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Infrastructure, Technology or R&D, Personnel, Operations, Marketing or Sales
Calls product offering
Product offeringCore offering
Calls is the product line of 24 Seven, a UK business telecoms solutions provider based in Leeds. It delivers business voice and communication services through the 24 Seven Platform, accessed via a dedicated web login portal, and supports extensibility through APIs for integrating calling capabilities into business workflows.
Differentiator
Problem solved
Functional benefit
Products and services
- 24 Seven Platform (Calls) The 24 Seven Platform (Calls) is the business voice and communications service offered by 24 Seven to UK business customers, accessed via the dedicated web login portal at calls.24seven.co.uk. It provides business telecommunications services with a focus on creative telecom solutions for businesses.
- Calls API The Calls API exposes the 24 Seven Platform's calling functionality, enabling integration of business voice/communication features into third-party applications and customer workflows.
Companies that use Calls
Customer profileIdeal customer profiles1 record
Calls technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Calls competitors and assessment
Company assessmentBroad incumbents
- Vonage (Ericsson): Global UCaaS and cloud communications platform serving SMBs and enterprises with voice, messaging, and APIs. Comparable business telecom product set to 24 Seven, but with international scale and now Ericsson backing.
- TalkTalk Business: UK business telecom operator providing voice, broadband, and SIP services to SMBs and partners. Direct overlap in UK business voice market where 24 Seven operates.
- RingCentral: Cloud UCaaS platform offering business phone, contact center, and messaging. Competes for the same UK SMB voice customers 24 Seven targets, with much larger product and channel investment.
- 8x8: Global cloud communications provider combining voice, video, and contact center for SMBs and mid-market. Overlaps with 24 Seven's unified business communications positioning.
- Vodafone Business UK: Major UK business telecom provider offering fixed voice, mobile, and UC solutions. Comparable customer base (UK SMBs) and overlapping product set, but with vastly greater scale and bundling power.
- Gamma Communications: UK-listed business communications provider offering cloud voice, UCaaS, and SIP trunking to SMBs and enterprises. Direct overlap with 24 Seven's voice/DID business, but at much greater scale and public-company breadth.
- BT Business: UK incumbent carrier providing business telephony, broadband, and unified communications to UK SMBs. Dominant local competitor with bundled offerings that can undercut specialist voice providers like 24 Seven.
Direct peers
- VoIP Unlimited: UK SIP trunking and hosted voice provider serving SMBs and partners. Very close comparable to 24 Seven - SME-focused UK voice carrier selling DIDs and SIP services on a recurring model.
- Daisy Communications: UK-based unified communications and connectivity provider serving SMBs and mid-market with voice, cloud, and connectivity. Closest peer in terms of UK-focused UCaaS/voice positioning, scale, and target customer segment.
Emerging players
- Microsoft Teams Phone: Cloud-native business telephony embedded in Microsoft 365, increasingly competing for the same UK SMB voice customers. Represents the secular shift to bundled UCaaS that pressures standalone voice providers like 24 Seven.
Market position
Customer concentration
Calls social profiles
Digital presenceCalls financial estimates
Financial estimateRevenue estimate
Valuation estimate
Calls leadership team
Management profileNumber of profiles
Calls funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Calls M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Calls
What does Calls do?
Calls is the product line of 24 Seven, a UK business telecoms solutions provider based in Leeds. It delivers business voice and communication services through the 24 Seven Platform, accessed via a dedicated web login portal, and supports extensibility through APIs for integrating calling capabilities into business workflows.
Is Calls a public or private company?
Calls is a private company. It is classified as unknown and is currently operating.
When was Calls founded?
Calls was founded in -1. It employs 11 to 50 people.
Who are Calls's main competitors?
Broad incumbents on record are Vonage (Ericsson), TalkTalk Business, RingCentral, 8x8, Vodafone Business UK, Gamma Communications and BT Business. Direct peers are VoIP Unlimited and Daisy Communications. Microsoft Teams Phone is listed as an emerging player.
Does Calls have an API?
No public API is recorded for Calls.
What industry is Calls in?
Calls's product category is Business Telecommunications. Its primary akta.pro industry code is HDAIAHAK, Numbering, DID, Porting & Carrier-of-Record Services. Its NAICS code is 5171 and its SIC code is 4813.