VoIP breakthrough invention that lets you make free or very cheap local, long distance and international calls. You can have a few questions in mind, how does VoIP, what are the advantages of VoIP
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relationship with computers and VoIP networks.

VoIP aside for now and can start learning about computer networking, you may have heard of computers, networks, switches and wireless networks. Computers communicate with each other through a series of son copper cable, fiber optic and wireless spectrum airwaves. Computer communication in the form of data. For example, if an e-mail to someone who e-mail in data packets that are transmitted over the network of computers, switches and routers, and if the packets sent is converted to arrive at their destination, they are still Once the e-mail converted. This whole process takes take less than a few milliseconds. This is like a computer network communication takes place.

VoIP is very similar to computer data communication in nature so it is important that you understand how a computer network data.

How VoIP works and how a VoIP call transmitted over data networks?

However, as we found out how the functions of the network computer data, it is easier for us to understand how VoIP works. VoIP stands for (Voice over Internet Protocol) VoIP calls and sounds do not feel different from a standard PSTN call. The only difference is that VoIP calls over data networks instead of PSTN exchange are transmitted.

When we make a VoIP call is a communication channel between the caller and the called IP (Internet Protocol) running on the computer data networks established. A phone conversation held on VoIP packets are converted from binary data streams in real time via the data network, converted when data packets arrive at the destination of this again in standard phone call. This process of converting voice into data, transfer and conversion of data in return voice conversation takes place in less than a few milliseconds. Sun VoIP call functions on data networks. I hope now you basics of how to understand a VoIP call is made. />
What voice codec and this codec role in VoIP?

voice codec a crucial role in the VoIP codec, which play the quality and cost of the call determined. Let me explain what exactly is VoIP codecs and how they work. You have probably heard of data compression, or you have probably already compressed by compressor with a volume of air in a closed vessel belongs, VoIP codecs are no different from a compressor. Speech codec compresses voice into data packets and decompresses the target. Some VoIP codec used to compress a lot of voice, while the quality of the service, using this type of codec means will be cheaper because it uses some of the data network. Some codecs are simply not capable of enormous amount of speech coding, they only consume huge amounts of data broadband networks, thus increasing the cost.

Here is a list of VoIP codec, how much bandwidth they consume data network

* * AMR voice codec broad 16Kbps narrowband, broadband and 32Kbps
* GIPS family -. 13.3 kbit / s and up
* GSM – 13 Kbps (full rate), 20ms frame size
* iLBC – 15Kbps, 20ms frame size: 13.3 Kbps / s, 30ms
image original size: ITU G.711 – 64 Kbps sample, based also alaw / ulaw
* ITU G.722 known – 48 / 56/64 kbps ADPCM audio 7 kHz bandwidth
* ITU G.722.1 – 24/32 Kbit / s audio bandwidth of 7 kHz (based on Polycom Siren Codec)
* ITU G.722.1C – 32 Kbits / s, an extension of Polycom, 14kHz audio bandwidth
* ITU G .722.2 – 6.6Kbps to 23.85Kbps. Also, AMR-WB known. CELP 7 kHz audio bandwidth
* ITU G.723.1 – 5.3/6.3 Kbps, 30ms frame size
* ITU G.726 – 16/24/32/40 Kbps
* G 0.728 ITU – 16 Kbps * ITU G.729
– 8 Kbps, 10ms frame size
* Speex – 2.15 to 44.2 kbit / s * LPC10
– 2.5 Kbps
* DoD CELP – 4.8 Kbps

What VoIP devices, VoIP phones VoIP PBX?

VoIP device are mini-computers, they include CPU, memory (RAM), ROM, software, operating systems, voice codec, and are adapted to work as a VoIP device. These units are responsible for converting the voice call in the data stream, data compression, decompression, transmission, ring tones and etc,. To use VoIP devices you connect your standard PSTN line or mobile phone to make and receive.

VoIP is no different from a VoIP device to contain VoIP device and a phone is connected, as discussed above, VoIP Phone CPU, memory (RAM), ROM, software, O / S and codecs. Some VoIP phones include an LCD screen that you can use as a browser.

VoIP-PBX phone (Private Branch Exchange) are mini-PBX VoIP full type material that contains computer server OS, FXS, FXO, T1, PRI, E1 and telecommunications interfaces. Many VoIP phone system, all of the above speech codec, the codec can be selected as preferred. VoIP phone system for you hundreds of features and enhancements. To learn more about VoIP PBX read the last paragraph of this article. />

What is the role of service providers VoIP VoIP?

VoIP providers play an essential role in the provision of Internet telephony service. You are responsible for terminating calls to other VoIP networks and PSTN. VoIP providers have in exchange agreements and arrangements with other VoIP providers around the world in different countries, registered and termination of VoIP and PSTN calls. Some VoIP providers can charge unlimited calls for a certain amount to earn money.

To find out what VoIP service provider to best suit your needs here, please visit the following Web site. VoIPBazar.com

What are the features available with VoIP technology?

ADSI On-Screen Menu System Alarm Receiver Append


Blind Transfer Call Detail Records
Call forwarding />
Call Call />



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Call Transfer Caller ID Caller ID Blocking /

caller to

Database / Retrieve
Database Integration Dial by Name


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Fax />

d’extension
Interactive Directory Listing Interactive Voice Response (IVR)
local and remote call agents

Macros Music On Hold Music Transfer

– Flexible mp3 based system
– random or linear />
Volume Control Predictive Dialer Privacy Open

settlement protocol (OSP)

general Paging Protocol Conversion Remote Call Pickup Remote

Roaming Extensions Route by Caller ID SMS />


Streaming Media

text-to-Speech (via Festival) Three times

Date and transcoding

– Visual Indicator for Message Waiting
– Stutter Dialtone for Message Waiting
– Voice Mail
Email – Voice Mail Groups
– Web Voice

Zapateller VoIPBazar proudly supports VoIP technology and provides information on how to make free or cheap calls to more than 10,000 cities around the world> <. / strong> p /
VoIP system