Specifications

● 3CXPhoneSystemmustnotbeinstalledonahostwhichfeaturesDNS,MSSharePointor
Exchangeservices.
● SeePortsusedby3CXPhoneSystemforthelistofrequiredportsthatneedtoalwaysbe
available(notusedbyanyotherservice).
DownloadandInstall3CXPhoneSystem
1. Downloadthelatestversionof3CXPhoneSystem.
2. Doubleclickonthe3CXPhoneSystemfile.Readthesystemrequirementsandclick“Next”.
3. Readourconfigurationrecommendationsandclick“Next”.
4. Youwillbeaskedtoreviewandacceptthelicenseagreement.
5. Select the installation folder path, 3CX Phone System will need a minimum of 10GB free
hard disk space. You will need to reserve additional space to store voicemail files,
recordings&voiceprompts.Choosethelocationtoinstallandclick“Next”.
6. You will be asked whether you wish to use IIS or the inbuilt web server, Abyss. For all
serveroperatingsystemswerecommendchoosingIIS.
7. CarefullychoosetheHTTPandHTTPSportsthatyouwanttouse.
● If you are upgrading from a previous version of 3CX Phone System, or already run a
webserveronyourmachine,useports5000/5001.Alternativelyusethedefaultports80/443
andresendtheProvisioningWelcomeEmails.
● Makesurethattheportsyouchooseareforwardedtothe3CXPhoneSystemmachine.
Read our guides below for more information regarding 3CX Phone system Requirements and
Firewall/Routerconfiguration.
● FirewallRouterConfigurationGuide.
● SelectingHTTP/HTTPSPortstoUsefor3CXPhoneSystem