# What are the minimum hardware specifications to install VitalPBX 4?

**URL:** https://forums.vitalpbx.org/t/what-are-the-minimum-hardware-specifications-to-install-vitalpbx-4/77
**Category:** FAQ
**Created:** [July 17, 2021, 4:14pm UTC](https://forums.vitalpbx.org/t/what-are-the-minimum-hardware-specifications-to-install-vitalpbx-4/77 "2021-07-17T16:14:23Z")
**Posts on this page:** 1
**Page:** 1

<div class="post-metadata">

### Author: ![admin](https://forums.vitalpbx.org/user_avatar/forums.vitalpbx.org/admin/32/3_2.png) [@admin](https://forums.vitalpbx.org/u/admin)
#### Post date: [July 17, 2021, 4:14pm UTC](https://forums.vitalpbx.org/t/what-are-the-minimum-hardware-specifications-to-install-vitalpbx-4/77/1 "2021-07-17T16:14:23Z")

</div>

- The Minimum Specs would be:
  - 2 Core CPU at 2.2GHz
  - 4 GB of RAM
  - 50GB of Storage

- To give you an exact set of specifications would be very difficult, since there are too many variables to consider, like how many concurrent calls you expect to have, how many of them are being recorded, are you compressing the calls , with G729 for example? So for this, we have [created an article](https://vitalpbx.com/blog/asterisk-pbx-multicore-4500-calls-test/) that talks about this. [On this article](https://vitalpbx.com/blog/asterisk-pbx-multicore-4500-calls-test/) we show you how you can use a script we wrote to stress test your system so you can know how many Concurrent Calls it can handle.

> **[Is Asterisk PBX Multicore? Test With More Than 4,500 Concurrent Calls](https://vitalpbx.com/blog/asterisk-pbx-multicore-4500-calls-test/)**
>
> Discover how Asterisk PBX can handle a massive load of 4,500 concurrent calls with our comprehensive multicore test. Find out more now!