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voip

3CX Phone System v8 RC 1 Released

September 16, 2009 - 9:09 pm | 17 Comments

We are happy to announce a release candidate for 3CX Phone System v8! New additions in this release candidate are: Support for Polycom BLF Support for Polycom Side car Support for Berofix BRI and PRI Gateway cards Support for the new Cisco 5XX range of IP phones You can download RC1 here: http://www.3cx.com/downloads/3CXPhoneSystem8.exe You can download the latest 3CX Assistant (with optionally integrated CRM and 3CXPHone) here: http://www.3cx.com/downloads/3CXAssistantSetup_80.exe You can

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Business Telephone Systems

September 15, 2009 - 3:30 pm | 1 Comments

Five Questions to Help You Decide Which Telephone System Is Best for Your Business There are various options in the market nowadays when it comes to business telephone systems; therefore it can be a challenge to decide which telephone system is best for your organization. In this article we have put together five useful questions that every businessperson should ask him/herself before adopting a new business telephone system. 1. Is

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The STUN Protocol Details

September 14, 2009 - 7:56 pm | 0 Comments

As seen in a previous article, STUN protocol plays an important role in VoIP implementations: to discover the presence of NAT and to learn and use the bindings allocate to the client by the NAT. In this article, we will look into details of the STUN protocol itself. The STUN Protocol STUN is a client-server protocol. A STUN client (typically embedded in VoIP software, such as an IP PBX or

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The STUN Protocol and VoIP – Part 2

September 9, 2009 - 8:15 pm | 1 Comments

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 to. It also enables the SIP entity to discover which port external SIP entities can connect to, to establish a connection. Since SIP uses UDP as transport protocol, and UDP is not a connection oriented

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The STUN Protocol and VoIP – Part 1

September 9, 2009 - 7:40 pm | 3 Comments

STUN stands for Simple Traversal of User Datagram Protocol (UDP) through Network Address Translators (NAT’s). Typically it is used in several different network implementations and scenarios, one of which is in VoIP implementations. Because of the way protocols used in a SIP based VoIP call work, making calls between two SIP entities running behind NAT devices such as a router or firewall (common scenarios found in home and business networks),

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IP Telephony

September 2, 2009 - 2:41 pm | 0 Comments

What every business needs to know about IP Telephony Internet Telephony (IP Telephony) is the term commonly used to define the transmission of phone calls over the Internet. This is regardless of whether traditional telephony equipment, computers and/or dedicated terminals take part in the calls and even if the phone calls are totally or partially transmitted over the Internet. IP Telephony is, without doubt, one of the technological developments that

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Demystifying the VoIP IP PBX

August 30, 2009 - 11:17 am | 0 Comments

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 database of partners engaging 3CX through Deerfield.com, I recognize that many are IT companies that are working with IP PBX’s (and phone systems in general) for the first time. This is a good

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3CXPhone 4 – new VoIP phone with iPhone look and feel

August 25, 2009 - 6:12 pm | 32 Comments

3CX Phone 4

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3CX / VoIPstore training event 4th Sept Los Angeles

August 7, 2009 - 6:25 pm | 0 Comments

VoIPstore and 3CX are organizing a training day in Los Angeles, California on September 4th. The training will show how easy it is to deploy and manage a 3CX phone system. You will learn all about 3CX, what hardware devices work best with 3CX, and get a preview of Version 8 that is coming out soon. Agenda 10:00 – 12:00: Overview of the 3CX Administration System 12:00 – 12:30: Lunch

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Video calls with 3CX Phone System

July 6, 2009 - 6:09 pm | 2 Comments

We often get asked if 3CX supports video. Yes it does! All you need of course is a phone that is capable of video, such as a Counterpath Bria. The phone must not be working in bypass mode, i.e. it must be connecting directly to the other extension. You can find a complete config guide for the Bria here: http://www.3cx.com/sip-phones/eyebeam-bria.html We do have plans adding video capability to 3CXPhone, although

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3CX Gateway for Skype 2.0 – Beta released!

June 25, 2009 - 1:57 pm | 9 Comments

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, we have been busy on building our own

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Some benchmarks tests – no dedicated server needed!

May 14, 2009 - 6:04 pm | 4 Comments

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 cases a dedicated server is NOT required. Modern servers have ample processing power to handle 3CX and other server applications on one box. This is also a huge advantage compared to an appliance or

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DoS and Flood protection in Firewall Configuration

May 5, 2009 - 6:08 pm | 1 Comments

So you have installed 3CX PhoneSystem, your VoIP Provider account registers fine, a couple of test calls successfully prove that all is working. It’s now time to put things into production. And as soon as you have more than a couple of simultaneous calls, things stop working correctly!!! Calls do not come in, registrations fail, unexplained one-way-audio or no-audio behaviour – what gives?? Firewalls and NAT Devices today are always

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Busy Lamp fields? VoIP Article

March 19, 2009 - 8:06 pm | 0 Comments

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 Assistant, however BLF remains a very popular feature. This article explains more about what BLF is and how it works in SIP context.

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VIDEO: 3CX Tunnel – Configuration (Part 2)

February 23, 2009 - 9:48 pm | 0 Comments

This VoIP Nugget explains in detail how to setup the tunnel server side. It then shows how to setup the 3CX VoIP Phone to connect from anywhere on the internet to 3CX Phone System.

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VIDEO: Using a Patton VoIP gateway with 3CX

January 26, 2009 - 4:36 pm | 0 Comments

This video has been developed by Marco Liechti of Patton and is the first of three part series about using VoIP gateways with 3CX. It explains why you need a VoIP Gateway and how it works. Recommended!

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VIDEO: How to setup external extensions using direct SIP

December 18, 2008 - 5:54 pm | 3 Comments

This nugget shows how to setup an external extension using direct SIP. Using the VoIP client as an example it walks you through the process of configuring extensions that reside outside your LAN.

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VIDEO: Firewalls & VoIP

December 4, 2008 - 10:08 pm | 0 Comments

NAT & Firewalls typically present some challenges to VoIP, however with a good understanding of what’s happening it’s possible to make VoIP calls work easily. And being able to have external extensions and bridges with remote offices is one of the cool features of VoIP. This VoIP nugget gives a high level introduction to the problems and what must be done.

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VIDEO: Introduction to SIP & RTP

November 26, 2008 - 9:56 pm | 1 Comments

This video is a high level overview to SIP & RTP – explains the basics of the protocols in a 4 minute video

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VIDEO: Understanding the 3CX Phone System server activity log

November 21, 2008 - 9:27 pm | 0 Comments

This video explains how to interpret the 3CX Phone System server status logs. This video walks you through the setup and tear down of a phone call, explaining the messages that are generated along the way. This video is an excellent way to learn how to use the server status logs to troubleshoot problems.

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Why choose 3CX Phone System?

November 18, 2008 - 5:40 pm | 5 Comments

This 10 minute sales presentation explains the unique selling points of 3CX – what makes our system different and what its key features are.

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How an IP PBX works and its benefits

November 18, 2008 - 5:29 pm | 0 Comments

This 5 minute sales presentation gives you a high level overview of how a PBX works and the main benefits of a VoIP PBX.

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VIDEO: Introduction to 3CX

November 18, 2008 - 5:24 pm | 0 Comments

This short presentation gives a brief introduction to 3CX and the VoIP market.

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Designing a Quality VoIP Line Solution with 3CX

November 11, 2008 - 4:54 pm | 3 Comments

One of the things I love most about 3CX is the ease with which you can add VoIP lines.  It’s quick and easy to create multiple VoIP lines for different purposes such as, long distance providers for outbound calls or to tie in local numbers from anywhere in the world.  From a customer perspective, the flexibility and cost savings that come with a VoIP line are extremely attractive. There are typically two

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