ShareIn this example we will demonstrate how to perform a blind and attended (consultative) transfer using a Grandstream GXP2020. We will assume that an incoming call will be received on the Grandstream phone which is …

ShareWe’re interested to see which of the many phones that 3CX supports are most popular. Let us know by voting for your favorite IP phone!

ShareThese are instructions to create a basic catch-all policy for all traffic generated from a machine running 3CX PhoneSystem which tags all traffic with a DSCP value of 56.

ShareSometimes you will want to dial a phone using a number that is NOT its extension number. The following documentation will show you how to set up an alias for an extension.
For Example:  The question …

Share3CX Phone can be configured to connect to 3CX PhoneSystem from the same LAN, and also from a remote location. If 3CX Phone is going to be used from a remote location, you can also …

ShareVersion 9 of 3CX PhoneSystem introduces a more powerful control set for Forwarding Rules. Each extension can be in any one of 5 different statuses:

Available
Away
Out of Office
Custom #1
Custom #2

Version 9 also allows us to define, …

ShareWhat is the Microsoft Dynamics CRM integration?
The Microsoft Dynamics CRM integration allows looking for contact information in Microsoft Dynamics CRM and launching of outbound calls from the Microsoft Dynamics web interface.
The …

ShareCorrect Router Configuration is a key element in ensuring correct communications between 3CX PhoneSystem and external entities such as external extensions, VoIP Provider services, and other Bridged PBXs.
NAT and/or PAT
When a network host A sends …

ShareConfiguring Outbound Rules on 3CX PhoneSystem is a very simple affair if you have a single device or service which you deliver calls with – in most cases a single rule will be enough.
But the …

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Connecting an External Extension to 3CX PhoneSystem is often requested, and can be extremely useful for linking small remote offices and home workers. Here we get a shot at using other phones as External Extensions.
Using …

ShareThe whole point of provisioning phones is to eliminate the difficulties associated with manually configuring a large number of devices:

It is a tedious task
It can be very time consuming
Possibility of Human Error
Retaining a Standard Config …

ShareIn this example we will demonstrate how to perform a blind and attended (consultative) transfer using a Snom 360. We will assume that an incoming call will be received on the Snom phone which is …

ShareIn this example we will demonstrate how to perform a blind and attended (consultative) transfer using a Cisco IP Phone SPA525G. We will assume that an incoming call will be received on the Cisco phone …

ShareIn this example we will demonstrate how to perform a blind and attended (consultative) transfer using a Polycom Soundpoint IP 650. We will assume that an incoming call will be received on the Polycom phone …

ShareIf you have been asking yourself how to secure 3CX PhoneSystem, read on…

ShareIn this article we will describe the configuration of a hardware router with a very attractive quality-price ratio. The Draytek 2820 is a ADSL 2/2+ Router/Firewall with advanced features such as the capability to establish …

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This document will provide an overview of the more common concepts which need to be kept in mind when configuring 3CX PhoneSystem inside your network infrastructure, including the following topics:

NAT Configuration
STUN Resolution
DNS Resolution in a …

ShareIMPORTANT This device has been tested for Voice using firmware version of “Wed Jun 10 11:53:59 2009”. The guide and template may not work for earlier or later versions of the firmware!
Configuration is a 2 …

ShareRecently Nick published an excellent tip regarding direct dialing from 3CX Assistant on supported phones. I have extended this feature proposing a method to call any number shown on any web page.

To make …

ShareIn order for 3CX Phone System to communicate successfully with VoIP providers and Remote Extensions, your firewall/router device must be configured for SIP operation. To maximize your chances of success, make sure you choose a …

ShareThis guide will show you how to configure a Beronet bero*fix box. The main target of this guide is to connect the bero*fix card with the LAN and WAN.
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Setting up the BeroNet bero*fix 400/1600/6400

Connect the …

ShareThis guide will show you how to configure a Beronet bero*fix card. The main scope of this guide is to connect the bero*fix card via a network brigde with the LAN and WAN.
Setting up the …

ShareIntroduction
DTMF (dual tone multi frequency) is the signal to the phone company that you generate when you press an ordinary telephone’s touch keys. In the United States, it’s known as a “Touchtone” phone. DTMF has …

ShareThis guide describes the different caller ID formats and how to alter /rewrite the caller ID before it gets sent to the Telecoms provider when using beroFix VoIP Gateway cards.
In this document we will use …

ShareThis article explains the main fields included in a SIP INVITE, which is sent to set-up a VoIP call. A SIP INVITE message contains typically between 4 and 6 header entries with contact information inside …