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VoIP How To

How do I update a Patton Smartnode to the latest firmware?

October 3, 2009 - 7:38 pm | 0 Comments

This document explains step by step how to upgrade the firmware of your Patton to the latest version. This doc uses the Patton 4554 as an example, however all other Patton devices follow an almost identical procedure. Step 1: Download the appropriate firmware for your Patton 1. Go to the firmware repository on the Patton website. The ones we are interested in are: http://upgrades.patton.com/submodelselect.asp?model=SmartNode 2. Now choose the Smartware firmware

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The Busy Lamp Field (BLF)

September 30, 2009 - 1:44 pm | 0 Comments

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 user and it is usually done by making use of the web interface. When configured, the phone subscribes to a resource list available on an IP PBX to be notified with such information about other

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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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How do I Connect A SmartNode to the Network and import the configuration?

September 14, 2009 - 7:42 pm | 0 Comments

This FAQ explains how to configure your Patton Gateway for the first time by connecting it to the network, discovering it’s IP Address and then configuring the network settings. You will then be able to import the configuration to it. There are 2 ways to log into a Patton Device. Connecting a Patton to the network using the Patton SmartNode Discovery Tool Step 1: Connect the device to the network.

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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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What to look for in a VoIP provider?

August 19, 2009 - 2:11 pm | 0 Comments

Once you decide to break your company free from a traditional phone system, one of things that make adopting IP Telephony attractive is the ability to use a VoIP provider to save on phone call costs. But, in the last few years, an overwhelming choice of VoIP providers have emerged following the booming in the IP PBX market and the staggering growth of VoIP. So, how do you know which

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Is Microsoft ISA server 2004 / 2006 supported as a firewall for VOIP?

August 3, 2009 - 7:00 pm | 0 Comments

The issues with Microsoft ISA server 2004 and 2006 Unlike most professional firewalls, Microsoft ISA server is not able to do static port mapping. Without static port mapping it is not possible to reliably connect to a VOIP provider or remote extensions. This is not a 3CX issue but an ISA server issue. The best solution is to buy a firewall such as from Linksys, Cisco, Netgear and others. Even

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Receiving a Fax using a VoIP Provider with 3CX

July 8, 2009 - 8:30 pm | 16 Comments

Please note that this information does NOT apply to V8. For V8, please go to this link: http://www.3cx.com/blog/releases/3cx-fax-update11344/ For those of you who have been dreaming about the possibility of receiving a Fax over a VoIP Provider account, with certain VoIP Providers it may be possible. 3CX has provided a patch for V7.1 which, while NOT being a guaranteed works-for-all solution, does improve interaction with VoIP Providers which support Fax

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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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Connect your Apple iPhone to 3CX Phone System

June 24, 2009 - 9:07 pm | 5 Comments

For those of you who adore the Apple iPhone or even iPod Touch, it is possible to connect your iPhone to 3CX Phone System. It requires the purchase of a small SIP phone from Appstore, but the voice quality is good and its fairly easy to use. You can view the full configuration guide here: http://www.3cx.com/sip-phones/sipphone-on-iphone.html

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Securing your Windows VoIP PBX

June 22, 2009 - 7:58 pm | 0 Comments

As with any application, a VoIP phone system needs to be secured, and this article outline some important things you can do to keep your phone system secure: 1. Install your phone system behind a firewall The most basic step that you can do is to install your phone system behind a firewall. Open only the ports that you need: If you use external extensions and bridges, you can choose

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How to test your own VOIP provider

June 5, 2009 - 4:56 pm | 0 Comments

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

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New promptsets for 3CX! German, Dutch, French, Swedish and more

June 4, 2009 - 1:26 pm | 6 Comments

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 interface says that it is up to

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How do I configure a CISCO router to allow connection to a VOIP provider?

June 3, 2009 - 6:46 pm | 0 Comments

If you are using a VOIP provider, then you will have to configure your firewall correctly in order to get reliable results. Your firewall must support STATIC PORT MAPPING. 3CX Phone System needs the following ports mapped on the router or firewall to operate properly: Port 5060 (TCP and UDP) – Used for SIP protocol transmission – must be a static mapping, no port translation Port 5090 (TCP) – Used

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Indexing and Searching Conversation Recordings

June 3, 2009 - 12:38 pm | 2 Comments

Article which explains how to index and search recordings

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How Microsoft Exchange Server 2007 / 2010 Unified Messaging works

June 2, 2009 - 1:41 pm | 0 Comments

Introduction Microsoft Exchange Server Unified Messaging communicates with a PBX via the SIP protocol. However: 1) Only TCP transport is used. UDP transport is not supported. 2) Microsoft Exchange Server does not support authorization. It works like a bridge. That means that if the PBX will require authentication from MS Exchange, it will send a 407 “Proxy Authentication Required” response to the UM Server during the SIP session. This will

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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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Why does 3CX require static port mappings (Full Cone NAT)?

May 3, 2009 - 6:53 pm | 0 Comments

If you are using a VOIP provider, you will need to have a firewall that supports and is configured to use static port mapping. Static port mapping is required for RTP, the protocol that carries audio, to be able to function correctly. RTP and Symmetric NAT VOIP applications use the RTP protocol to send and receive audio and video streams, tend to have problems behind a firewall or a router

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How do I configure my Linksys router for 3CX Phone System?

May 3, 2009 - 6:30 pm | 0 Comments

If you are using a VOIP provider, then you will have to configure your firewall correctly in order to get reliable results. Your firewall must support STATIC PORT MAPPING. 3CX Phone System needs the following ports mapped on the router or firewall to operate properly: Port 5060 (TCP and UDP) – Used for SIP protocol transmission – must be a static mapping, no port translation Port 5090 (TCP and UDP)

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Using portable Skype & 3CX to call from anywhere on the road

April 17, 2009 - 1:48 pm | 3 Comments

Many time its handy to be able to boot up a portable SKYPE instance and call into the office. You just put SKYPE on a USB flash drive, insert this drive in any Windows PC and call to your office 3CX system via 3CX Gateway for Skype. Now you have an additional option to using 3CX VoIP phone. To do this: 1. Install Skype on your PC and log in to

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