To use the call and screen sharing functions without an issue on LINE WORKS, the following call requirements must be met.
System requirements
| OS | OS version |
| Android | Android 7.0 or later |
| iOS | iOS 13.0 or later |
| Windows | Windows 10, version 1903 or later |
| Mac | macOS 10.15 or later |
Stable operation is not guaranteed for iPod Touch, custom OS (Linux, Fire OS), and virtual environment (simulator, emulator).
For Windows 10 N environment that does not use the media feature, you can use call and screen sharing functions after installing Media Feature Pack.
Call device requirements
| OS | Call device | Note | ||
| Speaker | Mic | Camera | ||
| Android | Required | Required | Required | |
| iOS | Required | Required | Required | |
| Windows | Optional | Optional | Optional | Equipment that does not support video calls - Intel HD 3000 graphics or lower - Virtual camera environment |
| Mac | Optional | Optional | Optional | |
You can start/join a call on the PC without a microphone or speaker device. However, you cannot use the call function properly and can only share screens.
Since the virtual camera environment (ChromaCam, Snap Camera, Iriun, etc.) is not supported on the PC, the video call function may have some issues while in use.
Network requirements
One-to-one calls
| Classification | WiFi | Ethernet | 2G | 3G | 4G | 5G |
| Voice calls (kbps) | 26 | 26 | 13 | 20 | 20 | 26 |
| Video calls (kbps) | 126 | 426 | 63 | 120 | 120 | 126 |
Group calls
| Classification | WiFi | Ethernet | 2G | 3G | 4G | 5G |
| Voice calls (kbps) | 26 | 26 | 13 | 20 | 20 | 26 |
| Video calls (kbps) | 176 | 476 | 113 | 170 | 170 | 176 |
The table above shows the one-way network speed required for a call in a lossless network environment.
When using a VPN environment, call traffic can increase by up to 40% in comparison.
Screen sharing
| Setting | Minimum | Recommended |
| Default | 2 (Mbps) | 4 (Mbps) |
| Optimize for video sharing | 1.5 (Mbps) | 4 (Mbps) |