TFTP stands for Trivial File Transfer Protocol simply because of its simplicity.  It is mainly used for automated file transfers between machines on UDP Port 69.  In a VoIP environment TFTP is used to upload …

3CX Phone System Delivers Mission Critical PBX which Offers Unified Communications Features
London, March 1st – 3CX, developer of the popular Windows-based VoIP PBX 3CX Phone System, today announced it has implemented the 3CX Phone System …

If you need a simple, SIP-based door phone, the Robin Compact SIP C01040 and C01041 provide a simple and inexpensive solution. This document will explain the steps necessary to set up, configure, and test one …

London, UK, 1st June 2010. 3CX (www.3cx.com), the specialist developer of software-based IP PBX phone systems for Windows™ announced today that it has partnered with leading UK and Global VoIP service provider Orbtalk (www.orbtalk.co.uk). The …

VoIPtalk today added the popular 3CX platform to its list of supported PBX platforms. VoIPtalk has been unofficially supported on the 3CX forums for years so interoperability has existed for some time. …

Nicosia, Cyprus and Oslo, Norway – 12 November 2010 – 3CX, the international developer of the award-winning 3CX Phone System for Windows has completed full interoperability testing with VoIP service provider Phonzo and announced today a …

London UK, November 5 – GUSS-EX a Polish engineering company,operating in warehouse logistics, turns to 3CX when they finally decide to replace their outdated telephone system.

London UK, September 21 – Neon Health Services Inc., a well known organisation in Cleveland Ohio, which is now entering its 40th year as a network of community health centers, has entrusted 3CX as …

3CX appointed Official Technical Supplier
London March 24 – Lotus Racing and 3CX announce that, 3CX has been appointed as technical supplier and that Lotus Racing has installed 3CX Phone System in its technical centre and …

3CX partners with Avanzada 7 to bring windows based PBX to Iberia

London, UK, February 09, 2010. 3CX (www.3cx.com), the international developer of the award-winning 3CX Phone System for Windows has announced a distribution agreement with …

MigraX to distribute 3CX in Sweden to its reseller channel and offer special PBX bundles.
London, UK, November 24, 2009. 3CX (www.3cx.com), the international developer of the award-winning 3CX Phone System for Windows has announced …

How does direct SIP work?
The way direct SIP calls are initiated is very similar to the way sending an email works. A caller can call a callee from either a stand alone SIP phone which …

Ten tips for a more secure IP PBX System
If you are in charge of a VoIP system or planning to deploy one, then VoIP security is probably one of the considerations. In this article we …

When a SIP based VoIP call is established, the audio or video sent between two SIP entities or more is streamed. Since many different codecs are supported by different devices or software, and each individual …

Busy Lamp Field (BLF) is a light on an IP phone which tells you whether another extension connected to the same PBX is busy or not. This has to be configured manually from the phone …

As seen in Part 1 of this article, STUN enables a SIP entity running behind a NAT to discover its public IP and what type of NAT is running on the gateway it is connected …

by Mike Deerfield, CEO, Deerfield.com
This article will discuss the benefits of IP PBX and 3CX, the various business opportunities available because of it, and how to identify what each 3CX customer needs.
While reviewing the emerging …

We have been performing a number of bench mark tests, in order to give 3CX users an idea what sort of memory and processing power is required by a 3CX installation.
First off – in many …

Busy Lamp fields are the LEDS on phones that indicate the status of other extensions.  BLF fields have been “inherited” from old style PBXs that have this feature.
Nowadays, presence information is also displayed via 3CX …

In a world filled today with news about recession, banking meltdowns, weak corporate performances,  and bear financial markets, it can sometimes be difficult to see opportunity amongst the sea of negative press.  Quite honestly, I’ve …

STUN stands for Simple Traversal of User Datagram Protocol (UDP) through Network Address Translators (NAT’s). It is used in several different network implementations and scenarios, one of which is VoIP. Because of the way protocols …

The VoIP industry, like many industries is becoming stratified. There seems to be several emerging markets – such as residential VoIP markets (i.e.: Vonage and Charter), personal VoIP markets (i.e.: Skype and Gizmo), and enterprise …

Two of the great features of the 3CX IP PBX are its ability to perform call recording and its ability to activate/deactivate call recording via the HTTP API. Most users are aware that call …