During set-up you are prompted to enter the FQDN of the phone system server OR the SIP domain. This SIP domain is used if you wish to use Direct SIP calls (more info here), but it also affects your installation in case you wish to use FQDNs in the phone configuration. If you intend to address the PBX using IP Addresses only, and do not intend to use "Direct SIP", then all you w [...]
How can I adjust the configuration for unsupported VOIP providers or gateways? 3CX performs extended tests with a number of VoIP Providers and Gateways. This allows us to create optimized templates for use with these tested Providers and Gateways, based on the information collected during the course of these tests. It is STRONGLY RECOMMENDED that if at all possible, you use a V [...]
Note: No longer available Recently we released a ‘prototype’ of a Skype Gateway - 3CX Gateway for Skype 1.0 which was based on an open source component. This allowed you to make and receive calls to Skype users. Using Skype you can allow customers to call you at no charge, and you can also leverage Skype clients on popular mobile platforms (Windows Mobile and Iphone). However, [...]
What is a FoIP FoIP – FAX over IP, is the technology used to allow faxing via the computer network. Because Fax is not ideally suited to travel via a normal phone call, the T38 protocol was developed. A FoIP (FAX) call is very similar to a normal VoIP (voice) call. In essence it is a call that transmits FAX data over an IP network. How the 3CX Phone System FAX Server Service re [...]
Important Note: The following article applies only to 3CX Phone System V14 and below It is possible for a user to make an outbound call via the Voicemail menu. Dial 999 -> Enter PIN -> Press 9 (for options) -> Press 3 (to dial an external number) -> Dial external number. When dialing the outbound number if no digits are entered for more than 1.5 seconds (1500ms) the [...]
An updated build has been released with some improvements and fixes. Change log: Fixed: Polling of outlook contacts from multiple outlook files Fixed: Exchange Outlook integration Fixed: Permissions issue in Exchange Fixed: Missed calls issue on German Operating systems. Fixed: Error notification on shutdown Improved: Contact lookup mechanism [...]
Whilst 3CX includes a good number of supported VoIP providers, it is impossible for us to template all the VoIP providers out there and to test them. If you have a VoIP provider you would like to use with 3CX that is not included, you can perform your own tests to see if the VoIP provider can be used with 3CX. This article explains the tests that you need to perform to be sure [...]
We have created a new voice prompts sets for many languages - and more to follow! These are the ones we have just created / updated and are available today: German (new) French (new) Swedish (new) Dutch (new) Danish (updated) Italian (updated) Polish (new) Japanese (new) To install the promptset: Go to system updates Select the language you want Click download (IGNORE that inte [...]
This guide is outdated please refer to the latest guide. Introduction This document describes the configuration of a Cisco Router for the use with 3CX Phone System. Status In general Cisco routers are know to work correctly and can be used as gateway in front of a 3CX Phone System to connect Voip Provider, direct Remote Extensions (STUN) and 3CX Tunnel connections. Due to the c [...]
Article which explains how to index and search recordings
Copyright © 2026