Blog - Page 273

Business Telephone Systems

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 [...]

By |September 15th, 2009|Comments Off on Business Telephone Systems
The STUN Protocol Explained - Messages, Attributes, Error codes

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 a [...]

By |September 14th, 2009|Comments Off on The STUN Protocol Explained - Messages, Attributes, Error codes
How do I Connect A SmartNode to the Network and import the configuration?

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 de [...]

By |September 14th, 2009|Comments Off on How do I Connect A SmartNode to the Network and import the configuration?
The STUN Protocol and VoIP – Part 2

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 protoco [...]

By |September 9th, 2009|Comments Off on The STUN Protocol and VoIP – Part 2
The STUN Protocol and VoIP – Part 1

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 o [...]

By |September 9th, 2009|Comments Off on The STUN Protocol and VoIP – Part 1
Euphonix chooses 3CX Phone System & Polycom phones as best of breed VoIP PBX solution

3CX Windows based software PBX and Polycom audio quality convince Audio Industry Giant LONDON, UK and Mountain View, Calif. - Sep 07, 2009: Euphonix, a leading manufacturer of large-format digital audio consoles, media controllers, and peripherals, has provided customers worldwide with trusted broadcast, post, live sound, and music production solutions for over 20 years. As a l [...]

By |September 7th, 2009|Comments Off on Euphonix chooses 3CX Phone System & Polycom phones as best of breed VoIP PBX solution
Using 3CX SIP Proxy Manager

Important Notice: This article contains outdated content and is here for archival/informational purposes. For the 3CX Session Border Controller view: https://www.3cx.com/docs/3cx-tunnel-session-border-controller/ What is the 3CX SIP Proxy manager? The SIP Proxy Tunnel can combine all SIP (signaling) and RTP (media) VoIP Packets from one location (typically a remote office) and [...]

By |September 3rd, 2009|Comments Off on Using 3CX SIP Proxy Manager
External and Internal Devices: Network Topology

The 3CX Phone System frequently communicates across LANs and establishes calls between devices (softphones, hardphones, gateways, VoIP providers, and PBX bridges) which are located on different networks. The PBX communicates both with devices that are inside the PBX's LAN (internal devices), as well as with devices that are outside the PBX's LAN (external devices). 3CX needs to [...]

By |September 3rd, 2009|Comments Off on External and Internal Devices: Network Topology
IP Telephony

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. [...]

By |September 2nd, 2009|Comments Off on IP Telephony
Provisioning unsupported IP phones

Introduction HTTP provisioning of IP Phones is useful for an administrator as it helps to automate the process of configuring an IP Phone for a particular extension. The administrator creates the extension as usual, and in addition specifies the MAC address of the phone. 3CX includes ready phone provisioning templates for the most popular IP Phones in the market. However, in so [...]

By |August 30th, 2009|Comments Off on Provisioning unsupported IP phones