How to deploy VoIP

Many people are discussing the advantages of various VoIP services, but when your company decides to use VoIP technology, there are many other decisions that need to be made apart from choosing a service enterprise.

If you have some knowledge about how to send calls to various hardware devices over an IP network and understand the components required for various functions of different components, you can easily make the right decisions.

Software phone number
 
Some telephone functions are built on software. This means that on the user terminal, the only hardware device required is a computer with an Internet connection. This computer needs to be equipped with sound-effects devices: sound cards, speakers or headphones that let you hear the other party's voice, and microphones that let you enter the voice.

The software that allows a PC to call a network computer. Its professional name is software phone. Most free software phone services only allow you to call a computer. If you want to use a computer to make a call to the public, you need to pay a monthly fee or number of points for a traditional phone number or mobile phone number on the public network. The most famous software phone number should be Skype.

The following are some business-oriented software phone products:

3CX VoIP Phone for Windows: This is a software that uses the call Initiation Protocol (SIP) technology. The free version and Enterprise Edition are available. It supports services of Asterisk and Sipgate network telephone enterprises.

ArrowPhone: This is another set of Windows Network Phone programs that support H.323 networks. You can use ArrowPhone through the firewall on the VPN network. You can also download a free trial version.

AGEphone: This software uses the "microSIP" network stack technology. In addition to Windows, it can also be used on Windows CE/Pocket PC and Windows Mobile, at the same time, we plan to release the Linux and Symbian versions in the future. It also has a webpage interface that allows users to call or answer calls through the webpage.

E-Phone: Free Windows platform network Phone software.

Gizmo: supports free VOIP software for Windows, Macintosh OS X, and Linux platforms.

SIP Communicator: this is an open-source VoIP client software using Java technology. It supports IPv4 and IPv6 speech and video communication.

Hardware devices of the software phone

Hardware equipment is not perfect, which is a major disadvantage of software phones. Although some people like to use headphones and computer speakers to talk about the phone, some people feel uncomfortable and want to use the "real" phone.

USB microphones allow some software phone users to use familiar telephone methods while enjoying the better voice quality of VoIP calls. This type of device must be connected through the USB port of the computer.

USB phones come in many different forms, including microphones, telephones containing microphones, and even hosts and sub-computers of wireless phones. Some USB phones need to install drivers. Therefore, you must first determine the operating system platform on which the network phone software is installed and have corresponding drivers.

USB phones can be found on websites such as Yuxin, World Phone, and Eutectics. Note: USB phones and IP phones are different. IP phones can be used independently without connecting to individual phones .)

Hardware phone number)

A hardware phone is an independent network phone device that does not need an external computer. It looks like a traditional phone, but uses the Ethernet to connect to the router. It can communicate directly with the VoIP server or gate device without using a personal computer. Therefore, the user does not need to install any software during use. Hardware phones are much more expensive than USB phones, generally at a price of over $ one hundred, while USB phones are generally less than $20 .)

Many companies produce hardware phone products, including Texas Instruments, 3Com, D-Link, and Cisco.

In addition, there is a special hardware phone, with built-in modem instead of Ethernet holes. This type of network phone can be connected to a remote VoIP server using the network dial service, without the need for broadband connections. Such products are very popular in countries outside the United States.

Another variant of hardware network phone is Wi-Fi Phone. This is a built-in 802.11 Wireless Transmission, rather than an IP phone that connects to the Ethernet. It can be connected to a Wi-Fi network. The base station is generally called a wireless access point) and connected to the Internet.

Like other hardware phones, it does not need to be connected to a computer. Many companies that make ethernet phones have also launched Wi-Fi network phone products.

Analogy telephone adapter ATA)

ATA allows users to call VoIP over a general phone. The adapter has a RJ-11 connection over a telephone line), allowing users to insert a traditional phone. At the same time, it also has Ethernet access holes. Users can use it to connect to the regional network.

ATA can use standard VoIP protocols such as SIP, H.323, and IAX to connect to the VoIP server. ATA can convert telephone analog signals into digital signals and send them over the Internet.

Generally, VoIP services such as Vonage and Lingo provide such VoIP transfer boxes. ATA is also called a VoIP router.

Digital telephone adapter DTA)

DTA is also called a telephone gate, which allows a private extension to switch to a PBX. The phones on the network use the existing architecture to call VoIP phones. Many large enterprises choose to replace PBX with ip pbx without changing the installed internal telephone lines, saving the company the cost of replacing all telephones. Citel, Intel, and other companies provide such phone gateways.

VoIP Interface

The VoIP interface is a interface that is installed in the computer's PCI slot and can provide VoIP functions. You can connect multiple telephone lines to the physical leased line. After installing the physical leased line management program on your computer, you can create a telephone system that automatically answers, transfers incoming calls, and records messages. VoiceTronix and Digium both have such products.

VoIP Gateway

Such devices can connect to the VoIP and PSTN networks so that the VoIP phones can communicate with the PSTN or mobile phones. The gateway can be used to compress, decompress, and route data during voice messaging.

The VoIP gate may provide an interface to connect to the network gate manager, vswitch, or other external controllers. It also supports network management, account setting, and other functions.

The VoIP gate is also called a media gate. Many companies in the IP Network telephone field, such as Nortel, SysMaster, and Oki Network Technologies, provide such products.

VoIP PBX

Like traditional PBX systems, the PBX system provides telephone transfer and routing functions within the company. Technically, the PBX system requires an operator responsible for the transfer of telephone, while the PABX Private Automated extension exchange) is a modern system that can automatically perform the transfer. In the next week's article, we will discuss more details about the ip pbx system.

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