What is a CSP?
A Communications Service Provider (CSP) is a company that hosts a cloud communications service and sells it on a subscription basis to channel partners and end-user organisations.
Some providers sell direct to end-user organisations, some adopt an in-direct approach via a network of resellers (channel partners), whilst some use both methods to sell their services.
A CSP typically brings together an ‘all one one’ solution for it’s customers, which includes telephony, unified communications & collaboration, video conferencing, contact centre and billing.
UK
- 4Com
- 6Degrees Group
- 8×8
- 9 Group
- Alcatel-Lucent Enterprise
- Antheus
- Arkadin
- Birchills
- Blueface
- BroadSoft (part of Cisco)
- BT
- Centile
- CenturyLink
- Channelhost
- Chess
- Circleloop
- Claranet
- Colt
- Content Guru
- Daisy Group
- Datatend
- Dimension Data
- Evolve IP
- Exponential-e
- Fidelity Group
- Foehn
- Fuze
- Fused
- Gamma
- GCI
- Glemnet
- Gradwell
- Hello Telecom
- IHUB
- Inclarity
- InTechnology
- Intercity Networks
- Invosys
- IPcortex
- KCOM
- Kesher Communications
- Level7
- Maintel
- MeetingZone
- Microsoft
- Mitel
- NFON
- Node 4
- NTA
- Nuvias
- Olive Communications
- Orbtalk
- Orange
- PureIP
- Redcentric
- RingCentral
- Sabio
- Sipgate
- Soho66
- Splicecom
- SureVoIP
- Talk Talk Business
- Telappliant
- TelcoInABox
- Telcoswitch
- Telstra
- thevoicefactory
- Twilio
- VanillaIP
- Verizon
- VIA
- Virgin Media
- Vodafone
- Voiceflex
- VoiceHost
- VoIP Unlimited
- VoIPfone
- VoIPstudio
- VoIPtalk
- Vonage Business
- VTSL
- Wavenet
- Worksmart
- Xelion
- Zen Internet
- Ziron
USA
- 8×8
- Altus
- Amazon
- Arkadin
- AT&T
- BellSouth
- BlueIP
- BroadSoft (part of Cisco)
- Broadvoice
- CenturyLink
- Coredial
- Doublehorn
- Evolve IP
- Fonality
- Fuze
- Intelepeer
- Intermedia
- Ipfone
- Jive Communications (Now Logmein)
- M247
- Magnaquest
- Masergy
- MCI Communications
- Megapath
- Netsapiens
- Nextiva
- Orange
- onSIP
- RingCentral
- Simple Signal
- Skyswitch
- Sotel
- Stage2 Networks
- Star2star
- TelNet Worldwide
- Twilio
- Unicope
- Verizon
- VOIPly
- Vonage Business
Austria
- Telkom Austria
France
- Alcatel-Lucent Enterprise
- Centile
- Orange
Germany
- Crown
- Deutsche Telekom
- NFON
- Orange
- Swyx
- vio:networks
Netherlands
- dean one
- Mtel
- Orange
- Speakup
Switzerland
- Swisscom
Australia
- Novum Networks
- Telstra
- Internode
Japan
- NTT
Singapore
- Singtel
