What are the bandwidth requirements?
Learn about join.me bandwidth requirements for high-quality screen sharing and video conferencing.
join.me bandwidth requirements are discussed in detail in the join.me Architecture Whitepaper.
Actual bandwidth requirements for high-quality screen sharing vary with screen resolution and the content being shared. As a general rule, we recommend at least 1Mbps of bandwidth on both the viewer and presenter side for sustained full-screen animation and shared control (when a participant is remotely controlling the presenter's screen).
Content that changes infrequently (such as a PowerPoint presentation) can be usefully shared on links as weak as a GPRS connection.
Table 1 provides estimates of bandwidth consumption in various scenarios.
|What's being shared||Example||Details||Bandwidth|
|Small Video||Youtube||360p movie clip, minimal screen block fragmentation||~800kbps|
|Fullscreen Video||1080p movie clip, minimal screen block fragmentation||~2500kbps|
|Website with various content||Heavy scrolling||~800kbps|
|Website with mostly text||News Site||Mild scrolling||~400kbps|
|Presentation||PowerPoint||Many images, colors, animations||~800kbps|
|Presentation||PowerPoint||Mainly bullet points and solid background||~400kbps|
Video conference bandwidth considerations
For meetings using video conferencing, Table 2 provides an estimate of bandwidth consumption in various scenarios.
|What's being shared||Resolution||Bandwidth (at 30 FPS )|
|Screen shared||320 x 240||100 - 500 Kbps|
|Screen paused (2 participants)||1280 x 720||1.0 - 2.0 Mbps|
|Screen paused (>2 participants)||640 x 480||0.5 - 1.0 Mbps|
VoIP bandwidth considerations
For best results, VoIP (internet calling) needs at least 100kbps of sustained bandwidth available, preferably on a stable, low-latency connection. Network congestion may result in progressively larger audio dropouts until the link is restored.