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Server Role



Media Repository (MR)

Recording Server (RS)Both functions on one server
(combined MR and RS)
Server PlatformAny industry standard PC server

Quad core Intel Xeon 2.4 GHz or higher with Hyperthreading

rule of thumb:

  • 1 core needed per 75 simultaneous audio-only calls, but minimum 2 cores for Recording Servers
  • 1 core needed per 150 simultaneous audio-only calls, but minimum 4 cores for Proxy Servers
  • 1 core needed per 50 simultaneous audio-only calls, but minimum 4 cores for combined Recording and Proxy Servers
  • 1 Media Repository needed per 1000 simultaneous web user sessions, with a minimum of 2 cores
  • for video applications calculate with 5 calls per corewith 125 Mbps per core, but minimum 2 cores
  • actual performance is highly dependent on used codecs and resolutions
Memory8 GB4GB8GB
Hard disk

System disk - 80 GB or more

Media disk - Use our Storage Disk Space Calculator tool to size your hard disk capacity.
Contact support at to help you properly size your disks.

Always use redundant disks with RAID and have separate Media and System volumes!

On Recording Servers: at least 2 disks with RAID 1
On Media Repositories: if more than 2 disks are needed you can use RAID 5, otherwise RAID 1.

Network1x Gigabit Ethernet1x Gigabit Ethernet
plus 1x Gigabit Ethernet port if you use passive recording
(if you use a virtual server you need to dedicate
a physical port to the virtual server instance - available on VMware)
Operating system

Microsoft Windows Server 2008 R2
Microsoft Windows Server 2012 R2
Microsoft Windows Server 2016 

Standard Edition, latest service packs installed
Important! We support the English versions of Microsoft server software!


Microsoft SQL Server 2008 R2
Microsoft SQL Server 2012
Microsoft SQL Server 2014
Microsoft SQL Server 2016

Express, Standard or Enterprise Edition, latest service packs installed

Express Edition is bundled for free, recommended up to 1.000.000 calls.
If the Full-Text Search feature is needed, then install SQL Server Express with Advanced Services.
See Select your SQL Server Edition

If you have an existing SQL Server cluster, we recommend using that as Verba database
(in that case 4 GB RAM is enough on the MR and MR+RS servers).


VMware recommended, see Virtualization.

Hyper-V is also fully supported.

AntivirusMake sure your Antivirus software does not scan database, media and log folders.
PowerRedundant Power Supply
UPS recommended