Recommended Hardware Specifications for 3CX Phone System
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Install on $150 Appliance
Intel MiniPC architecture
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Personal Click2Meet URLs

Recommended Hardware Specifications for 3CX Phone System

Hardware Requirements

For a list of supported operating systems, go here.

Up to 16 sim calls

CPU

Intel® Core™ i3-3210 Processor (3M Cache, 3.20 GHz)

Memory

2 GB

HDD

SATA 30GB

Can be Hyper V / ESXi

Yes

NETWORK

100/1000 Mbit/s

Up to 64 Simultaneous Calls

CPU

Intel® Core™ i3-3210 Processor (3M Cache, 3.20 GHz)

Memory

4 GB

HDD

SATA 60GB

Can be Hyper V / ESXi

Yes

NETWORK

100/1000 Mbit/s

Up to 256 Simultaneous Calls

CPU

Intel® Core™ i7-3770 Processor (8M Cache, up to 3.90 GHz)

Memory

8-10 GB

HDD

SATA 100GB

Can be Hyper V / ESXi

No Dedicated Machine

NETWORK

1Gbit/10Gbit

Up to 1,024 Simultaneous Calls

CPU

Intel Xeon CPU - E5405 2.00 Ghz 2.00 Ghz 2 Processors

Memory

16 GB

HDD

SATA 500GB

Can be Hyper V / ESXi

No - Dedicated Machine

NETWORK

1Gbit/10Gbit

General notes

Last Updated: 06.04.2016 - Notes: Information on Intel Processors and CPU family specifications is available here: http://www.intel.com/content/www/us/en/homepage.html. Recording and Voicemail - Every 60 seconds of recorded audio is approximately 1MB. Remember this into consideration when choosing hard disk size.

Logging - Verbose logging consumes disk space. On a busy system the logs folder can consume up to 1GB per day.

Every 5000 calls in full verbosity consume 2GB of HDD space. This list describes the recommended operating systems. For a list of supported operating systems click this link: http://www.3cx.com/docs/supported-operating-systems/.

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  1. What is the minimum and what is the recommended hardware requirement for v14 standalone AND the CLoud version? Can you also add this in a document ? Because these CPU’s that are in the documentation are already old and the working of CPU’s changes as well. What is more important ? To have more cores or just have 2 cores but more Ghz per core?

    October 17, 2015 at 4:59 pm Reply
  2. Spring

    This is base on SC? If have like 1000 extensions what is the requirement?

    September 14, 2016 at 5:18 pm Reply
  3. Spring

    Hi, Where can i find hardware requirement support for the amount of extensions?

    September 15, 2016 at 6:34 am Reply
  4. What would be the most performant solution / recommended for a large organisation of 500 users.
    A 3CX on Debian
    A 3CX on Windows 2016
    Using the same server hardware?

    November 19, 2016 at 1:15 am Reply
    • Well at the moment you cannot compare them because they are not at par with the feature set so TODAY (NOVEMBER 2016) the windows version still wins. Reasons:
      A) 3CX on windows has been tested for a longer period of time whilst 3CX on Debian is 8 months old.
      B) 3CX on debian is still not 100% feature complete. SP4 and SP5 will make it feature complete.

      November 21, 2016 at 10:25 am
    • I would decide based on which operating system you are most comfortable administering. Thats the key issue

      November 21, 2016 at 10:33 am
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