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T-Systems

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T-Systems is a service provider for information technologies and digital transformation.

VoIP
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Market Share of T-Systems

Current Customer(s)

824

Market Share (Est.)

0.52%

Ranking

#19

Top Competitors and Alternatives of T-Systems

The top three of T-Systems’s competitors in the VoIP category are CallRail with 27.55%, Skype with 23.29%, Cisco WebEx with 13.93% market share.

TechnologyDomainsMarket Share (Est.)Versus page
CallRail4406327.55%T-Systems vs CallRail
Skype3725023.29%T-Systems vs Skype
Cisco WebEx2228013.93%T-Systems vs Cisco WebEx
Cisco VoIP142648.92%T-Systems vs Cisco VoIP
Cisco Unified Communications Manager (CallManager)53393.34%T-Systems vs Cisco Unified Communications Manager (CallManager)
Google Voice44392.78%T-Systems vs Google Voice
RingCentral43872.74%T-Systems vs RingCentral
Genesys PureCloud27941.75%T-Systems vs Genesys PureCloud
Five927151.70%T-Systems vs Five9
Aircall26941.68%T-Systems vs Aircall
Cisco IP Phones26121.63%T-Systems vs Cisco IP Phones
3CX17451.09%T-Systems vs 3CX
Grasshopper14970.94%T-Systems vs Grasshopper
Talkdesk12400.78%T-Systems vs Talkdesk
ClickDesk11900.74%T-Systems vs ClickDesk
Virtual PBX11470.72%T-Systems vs Virtual PBX
NewVoiceMedia9410.59%T-Systems vs NewVoiceMedia
SolarWinds VoIP & Network Quality Manager8680.54%T-Systems vs SolarWinds VoIP & Network Quality Manager
Jive Voice8190.51%T-Systems vs Jive Voice
Dialpad7910.49%T-Systems vs Dialpad
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Popular Comparisons

Top Competitors and Alternatives of T-Systems

The top three of T-Systems’s competitors in the VoIP category are CallRail with 27.55%, Skype with 23.29%, Cisco WebEx with 13.93% market share.

T-Systems vs CallRail

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T-Systems vs Skype

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T-Systems vs Cisco WebEx

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T-Systems vs Cisco VoIP

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T-Systems vs Cisco Unified Communications Manager (CallManager)

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T-Systems vs Google Voice

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T-Systems vs RingCentral

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T-Systems vs Genesys PureCloud

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Customers of T-Systems

Around the world in 2025, over 824 companies have started using T-Systems as VoIP tool.

CustomersEmployee RangeCityRegionCountrySocial Links
Kerry Group10,000+BeloitWisconsinUnited States
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Cognizant10,000+TeaneckNew JerseyUnited States
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Persistent10,000+PuneMaharashtraIndia
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Progressive Insurance10,000+ClevelandOhioUnited States
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Univar Solutions10,000+Downers GroveIllinoisUnited States
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Manpower10,000+MilwaukeeWisconsinUnited States
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Nokia10,000+EspooUusimaaFinland
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Flex10,000+AustinTexasUnited States
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VMware10,000+Palo AltoCaliforniaUnited States
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Poly10,000+Palo AltoCaliforniaUnited States
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T-Systems Customers by Products and Services

The top three products and services offering customers that use T-Systems for VoIP are Cloud Services (58), Managed Services (36), Consulting (36).

Customers

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T-Systems Customers by Employee Size

The majority of T-Systems's customers for the voip category fall in the company size of 10,000+ employees (201 companies), 100 - 249 employees (115 companies), 1,000 - 4,999 employees (106 companies).

Employee Size

T-Systems Customers by Geography

The top three geographies of T-Systems for voip are the United States with 247(37.31%), Germany with 121(18.28%), United Kingdom with 62(9.37%) customers respectively.

Customers

Employees of T-Systems

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Also see other Products/Services by T-Systems in:

VoIP

FAQ

Find answers to the most often asked questions by users.

Who are the top T-Systems competitors?

T-Systems’s Top competitors in the voip category are CallRail, Skype, Cisco WebEx. You can view a full list of T-Systems competitors here. 6sense uses advanced data mining and AI algorithms to track customers and competitors of T-Systems and 40,000 other technologies on the internet. You can also compare T-Systems and its feature with top competitors here : T-Systems vs CallRail T-Systems vs Skype T-Systems vs Cisco WebEx.

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What is T-Systems customer distribution based on company size?

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What is T-Systems market share in the voip?

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What are the top countries that use T-Systems?

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What are the top industries that use T-Systems?

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