Technical specifications

We designed OnSync with the user in mind, aiming for simplicity and ease-of-use from the outset. Seamless connection to the service is critical so we set three key aims:

No need to download or install software

Everything you need to web conference should already be on any computer — whether you are at work, home, an Internet café, hotel or a friend’s place.

Accessible from anywhere

Access needs to be quick and easy no matter where you are in the world, regardless of existing firewalls.

24/7 availability

An Internet service needs to be as reliable as a desktop application — always ready, always on.

Please take note that we do require Adobe Flash Player to be installed for the browser you use.

Client system requirements

Hardware
Windows
Mac
Linux
Windows
  • For participants:
  • 1.4GHz Intel® Pentium® 4 or faster processor (or equivalent)
  • 512 MB of RAM (1 GB recommended)
  • For moderators using screensharing or the MP4 recorder:
  • 2.0 GHz CPU with dual-core processor minimum (Recommended: Quad-core i5 processor or better)
  • 4 GB of RAM minimum (Recommended: 8 GB or more)
Mac
  • For participants:
  • 1.83GHz Intel Core™ Duo or faster processor
  • 1 GB of RAM
  • For moderators using screensharing or the MP4 recorder:
  • Mac computer with an Intel processor (Recommended: Dual core 2.0GHz or faster)
  • 2 GB of RAM (Recommended: 4GB of RAM or greater)
Linux
  • For participants:
  • 2.4 GHz or faster x86-compatible processor or Intel® Atom™ 1.6GHz or faster processor for netbooks
  • 1GB of RAM of free RAM
  • For moderators using screensharing or the MP4 recorder:
  • Currently we do not support screensharing or MP4 recording on Linux
Operating systems & browsers
Windows
Mac
Linux
Solaris
Windows
  • Microsoft® Windows 10®
    Microsoft Windows Edge, Microsoft Internet Explorer 9.x or higher, Firefox 4.x or higher, Safari 4 - 5.1.7, Chrome 5.x or higher
  • Microsoft® Windows 8.x®
    Microsoft Windows Edge, Microsoft Internet Explorer 9.x or higher, Firefox 4.x or higher, Safari 4 - 5.1.7, Chrome 5.x or higher
  • Microsoft® Windows 7® SP1
    Microsoft Internet Explorer 9.x or higher, Firefox 4.x or higher, Safari 4 - 5.1.7, Chrome 5.x or higher
  • Microsoft® Windows Vista®
    Microsoft Internet Explorer 9.x or higher, Firefox 4.x or higher, Safari 4 - 5.1.7, Chrome 5.x or higher
  • Microsoft® Windows XP®
    Microsoft Internet Explorer 9.x or higher, Firefox 4.x or higher, Safari 4 - 5.1.7, Chrome 5.x or higher
  • NOTE: Microsoft Internet Explorer 9 or higher "Medium" and" Medium-High" default security settings supported. "High" security setting not supported.
Mac
  • Mac OS X v10.8 or higher
    Firefox 4.x, Safari 4.x, Google Chrome 5.x or higher
Linux
  • Red hat® enterprise linux
    (RHEL) 5
    Firefox 4.x, or higher
  • Novell SUSE® 9.x or higher
    Firefox 4.x, or higher
  • Ubuntu 10 or later
    Firefox 4.x or higher
Solaris
  • Solaris 10
  • Firefox 4.x or higher
Latest version of Flash Player recommended.
Mobile devices
Apple
Android
Apple
  • Devices: iPhone 5S, iPhone 5, iPhone 4S, iPad with Retina display, iPad 3, iPad 2, iPad Mini, iPod touch (4th and 5th generations)
  • iOS 8 and higher
Android
  • ARMv7/x86 processor with vector FPU, minimum 550MHz, OpenGL ES 2.0, H.264 and AAC HW decoders
  • Android™ 4.0 and higher
Bandwidth
Audio
Video
Video (high quality and resolution)
Screensharing
Windows
  • From 50 kbps upload/download
    (100 kbps recommended)
Mac
  • From 100kbps upload/download
    (200 kbps recommended)
Linux
  • From 500 kbps upload/download
    (1 mbps recommended)
Linux
  • From 800 kbps upload/download
    (1.5 mbps recommended)
While OnSync is designed to use bandwidth efficiently, and even though it does try to degrade gracefully, it is still a broadband platform. For best possible and most reliable experience do not use WiFi equipment and use a high-grade, dedicated, low-latency broadband internet access. Use our System Check application to test your connection prior to attending a conference.
Please consider packet loss, latency in round trips and jitter value of connections used.

Server system requirements

Communication server
Hardware
Operating system
Software
Hardware
  • MINIMUM:
  • Intel® Pentium® 4, 3.2 GHz (Dual Xeon® or higher recommended)
  • 8 GB of RAM
  • 100MB of available disk space for installation, 80GB+ recommended for Content Storage
  • CD-ROM Drive (optional)
  • 1 GB Ethernet card
  • RAID Drive recommended
  • RECOMMENDED FOR UP TO 2000 CONCURRENT USERS:
  • Dual Intel Xeon E5-2620v3 or better
  • 64 GB of RAM or more
  • 4 x 4 TB SATA in hardware RAID 10 or better/more
  • 1 Gbps outbound
  • 500 Mbps inbound
Operating system
  • Linux recommended.
  • Red Hat® Enterprise Linux® Server 6.6 64 bit
  • Linux CentOS 6.6 64 bit
  • Microsoft® Windows Server® 2012 R2 64 Bit
  • Microsoft® Windows Server® 2008 R2 64 Bit
Software
  • Adobe Media Server 5 Professional
Web server
Hardware
Operating system
Software
Hardware
  • MINIMUM:
  • Intel Xeon E3-1230
  • 4 GB of RAM
  • 300MB of available disk space for installation, 10GB+ recommended for Content Storage
  • CD-ROM Drive (optional)
  • 100 Mbps Network Adapter
  • RAID Drive (optional)
  • RECOMMENDED FOR UP TO 2000 CONCURRENT USERS:
  • Intel Xeon E3-1231v3 or better
  • 32 GB of RAM or more
  • 2x4 TB SATA in hardware RAID 1 or better
  • 500 Mbps outbound
  • 100 Mbps inbound
Operating system
  • Linux recommended.
  • Red Hat® Enterprise Linux® Server 6.6 64 bit
  • Linux CentOS 6.6 64 bit
  • Microsoft® Windows Server® 2012 R2 64 Bit
  • Microsoft® Windows Server® 2008 R2 64 Bit
Software
  • Apache 2 with mod_rewrite, or
  • nginx 1.10 or newer
  • PHP 5.6
  • Zend Guard Loader
  • MySQL 5, or
  • MariaDB 10.1 or newer
  • ProFTP or similar
File conversion server
Hardware
Operating system
Software
Hardware
  • Intel Core i3 2130 or better
  • 4 GB of RAM or more
  • 40 GB disk
  • 100 Mbps up/downlink
  • Network:
  • Outbound HTTP port 80
  • Outbound FTP port 21
  • Inbound RDP port 3389 (for maintenance only)
Operating system
  • Microsoft® Windows Server® 2012 R2 64 Bit
  • Microsoft® Windows Server® 2008 R2 64 Bit (Web Edition and higher)
  • Windows 7
Software
  • Microsoft Office 2010, supported editions: Home and Student, Home and Business, Standard, Professional, Professional Plus, University.
    Not supported: Starter
  • Adobe PDF Reader 10.x or later
  • OnSync 5.x
  • OnSync Media Converter 5.x (OMC5 and iOMC)
  • Microsoft .NET Framework version 2.0 or later
PowerPoint does not support multi-core CPU’s efficiently. The speed of the conversion will primarily depend on the frequency of the CPU, so the recommendation is to get a CPU with a higher MHz frequency and save on the number of cores.
PhoneSync server
Hardware
Operating system
Software
Hardware
  • Intel Xeon E5 3.5GHz or better
  • 64 GB RAM
  • 1 TB Disk
Operating system
  • Cent OS 6, 64-bit
Software
  • FreeSWITCH - version 1.4.15
  • CDR stats (optional)
PhoneSync server should be in same LAN as Communication Server for optimal performance.

Supported input devices

Camera & video
Windows
Mac
Linux
Windows
  • Any camera or video card compatible with the Windows Driver Model (WDM)
  • USB and FireWire supported
  • OnSync has been tested and works well with most Logitech Web Cameras. QuickCam® Pro 9000 recommended
Mac
  • Any camera or video card compatible with the QuickTime driver model
  • USB and FireWire supported
  • OnSync has been tested and works well with iSight Cameras. We can also recommend the Logitech QuickCam® Vision Pro
Linux
  • Any Camera or Video Card compatible with Video4Linux 1 driver model for Flash Player 9
  • Any Camera or Video Card compatible with Video4Linux 2 driver model for Flash Player 10 (recommended)
  • USB and FireWire supported
Microphone, headset & audio
Windows
Mac
Linux
Windows
  • Any microphone or sound card compatible with the Windows Driver Model (WDM)
  • USB and FireWire supported
  • Headsets or echo-cancelling microphones are strongly recommended
Mac
  • Any microhphone or sound card compatible with the QuickTime driver model
  • USB and FireWire supported
  • Headsets or echo-cancelling microphones are strongly recommended
Linux
  • Any Microphone, headset or audio card with ALSA support for Flash Player 9
  • Any Microphone, headset or audio card with ALSA support for Flash Player 10 (recommended)
  • USB and FireWire supported
  • Headsets or echo-cancelling microphones are strongly recommended

Supported file types

Native support
Image
Video
Audio
External sources
Image
  • PNG
  • GIF
  • JPG
  • SWF
Video
  • FLV
  • F4V
  • MP4
  • M4A
  • MOV
  • MP4V
  • 3GP
  • 3G2
Audio
  • F4A
  • MP3
External sources
  • YouTube@
  • Vimeo
  • Flickr@
  • Any URL with a supported file type
Supported by OnSync converter
Image
Video
Audio
MS Office, Text & PDF
Image
  • BMP
Video
  • MPG
  • MPEG
  • MP4
  • MPG4
  • MOV, MOOV
  • WMV
Audio
  • AAC
  • WMA
MS Office, Text & PDF
  • PPT, PPTX
  • DOC, DOCX
  • XLS, XLSX
  • TXT, RTF
  • PDF
Files supported by OnSync converter will be automatically prepared for online presentation by the OnSync conversion software. All ASP customers enjoy this service. Due to the great diversity in video codecs and Digital Rights Management (DRM), some video files may fail to convert even though they carry a file extension listed above. Contact us if you want to present a file that is not listed above, or use the inbuilt screen sharing feature to instantly broadcast your desktop.
Call us: +34 93 18 55 510
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© Digital Samba, SL. All rights reserved. Terms of use | Privacy Policy
Digital Samba provides enterprise level web conferencing solutions to the Large Business & Enterprise and SMB market, government and education markets. Digital Samba is the creator of OnSync, all-in-one web conferencing solution. OnSync excels in ease-of-use, audio and video communications, multimedia file support and ease of access. OnSync is used for online meetings, web conferencing, small and large webinars, web meetings, intranets, eLearning, virtual classrooms, audio conferencing, desktop sharing, remote support, conference calling and video conferencing. Digital Samba OnSync is the world's only full-featured white label webinar software. OnSync, PhoneSync, Stay in Sync and Digital Samba are trademarks of Digital Samba, SL. © Digital Samba 2017.