Key Players
- 8x8 Inc
- Airtel Business
- Alcatel-Lucent Enterprise
- Avaya Inc
- BT Business
- The Vanguard Group
- Deutsche Telekom AG
- Gamma Communications
- JioBusiness
- KDDI Corporation
- BlackRock
- Mitel Networks Corporation
- Sumitomo Group
- NFON
- NTT Communications Corporation
- Panasonic Holdings Corporation
- RingCentral Inc
- SoftBank Group Corp
- Specialist Players
- Tata Tele Business Services
- Zoom Phone
