- An internet connection – broadband wired or wireless (3G or 4G/LTE).
- Speakers and a microphone – built-in or USB plug-in or wireless Bluetooth.
- A webcam or HD webcam – built-in or USB plug-in.
- Supported Devices:
- Desktop web browser (We suggest Chrome).
https://www.twilio.com/docs/voice/client/javascript#supported-browsers - iPhone or Android device with the latest software.
Room and Participant System Limits
The following table illustrates the standard limits of the different Twilio Rooms:
| P2P Room | Small-Group Room | (Regular) Group Room | |
| Max Participants | 10(*) | 4 | 50 |
| Max Participant Duration | 4 hours | 4 hours | 4 hours |
| Max Room Duration | 24 hours | 24 hours | 24 hours |