Free VOIP Phone Calls – VOIP Technology is Explained in Detail

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VoIP is a break through invention which lets you make free or very cheap local, long distance and international calls. You may have a few questions in your mind such as how VoIP works, what are the benefits of fixed voip.

VoIP relationship with Computers and Networks.

Put VoIP aside for now and lets start learning about computer networking, you may have heard about computers, networks, switches and wireless networks. Computers communicate with each other via a set of copper wires, fiber optic cables and wireless spectrum waves.

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

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

Now since we have discovered how computer data network functions therefore it will be easier for us to grasp how VoIP works. VoIP stands for (Voice over Internet Protocol), fixed voip and sounds no different than a standard PSTN call. The only difference is that the google voip are transmitted over computer data networks rather than PSTN exchanges.

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This whole process of voice conversion into data, transmission and data conversion into back voice conversation takes place within less than few milliseconds. That is how a VoIP is call is works over data networks. I hope that now you understand basics of how a VoIP call takes place.

What are speech codec’s and what role codec plays in VoIP?

Speech codec play a vital role in VoIP and codec determines the quality and cost of the call. Let me explain you what exactly VoIP codec’s are and how they work. You may have heard about data compression, or probably you have heard about air compressor which compresses a volume of air in enclosed container, VoIP codec’s are no different than a air compressor.

Speech codec’s compresses voice into data packets and decompresses it upon arrival at destination. Some VoIP codec’s can compress huge amount of voice while maintaining QoS which means use this type of codec will cost less because it will consume just a fraction of data network. Some codec’s are just not capable of encoding huge amount of voice they simply consume huge amount of data networks bandwidth hence the cost goes up.

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What are VoIP Devices, VoIP Phones and VoIP PBX?

Fixed voip device are mini computers, they contain CPU, Memory (RAM), ROM, Software, Operating Systems, Speech Codec’s and they are customized to work as VoIP device. These devices are responsible for converting voice conversation into data streams, data compression, decompression, transmission, ring tones, bells and etc.

VoIP phones are no different than a VoIP device, they contain VoIP device plus a built-in phone, as explained above VoIP phone also contains CPU, Memory (RAM), ROM, Software, O/S and codec’s. Some VoIP phones also contain a LCD screen which you can use as a internet browser.

VoIP PBX (Private Branch Exchange) are mini telephone exchanges, VoIP PBX are full computer server type hardware which contains OS, FXS, FXO, T1, PRI, E1 and various other telecommunication interfaces. Many VoIP PBXs also contains all the above mentioned speech codec’s which can be selected as a preferred codec. VoIP PBX can provides hundreds of features and extensions. To find out more about VoIP PBX read the last paragraph of this article.

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What role a VoIP Provider plays?

VoIP providers play a vital role with provisioning your internet phone service. They are responsible for terminating your voice calls to different VoIP and PSTN networks. fixed voip providers have agreements and arrangements with other VoIP service providers all over the world in different countries for exchanging, terminating and origination of VoIP and PSTN calls. Some VoIP providers will let you make free unlimited calls for a fixed amount of money. Visit: Phone.com

What features are available with VoIP Technologies?

ADSI On-Screen Menu System

Alarm Receiver

Append Message

Authentication

Automated Attendant

Blacklists

Blind Transfer

Calling Cards

Conference Bridging

Database Store / Retrieve

Database Integration

Dial by Name

Direct Inward System Access

Distinctive Ring

Distributed Universal Number Discovery

Do Not Disturb

E911

ENUM

Fax Transmit and Receive (3rd Party OSS Package)

Flexible Extension Logic

Interactive Directory Listing

Interactive Voice Response (IVR)

Local and Remote Call Agents

Macros

Music On Hold

Music On Transfer:

– Flexible Mp3-based System

– Random or Linear Play

– Volume Control

Predictive Dialer

Privacy

Open Settlement Protocol (OSP)

Overhead Paging

Protocol Conversion

Remote Call Pickup

Remote Office Support

Roaming Extensions

SMS Messaging

Spell / Say

Streaming Media Access

Supervised Transfer

Talk Detection

Text-to-Speech (via Festival)

Three-way Calling

Time and Date

Transcoding

Trunking

VoIP Gateways

Voicemail:

– Visual Indicator for Message Waiting

– Stutter Dialtone for Message Waiting

– Voicemail to email

– Voicemail Groups

– Web Voicemail Interface

Phone proudly promotes VoIP Technology and provides information how to make free or cheap calls to over 10,000 cities across the globe.

Er. Bhuvnesh Bhushan is author related to following websites and he writes passionately on various telecommunication topics.

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Bhuvnesh Bhushan

Fountainhead of WideInfoWeb. Bhuvnesh Bhushan is a Digital Marketing Geek. He is fun loving & adventurous by heart. Find his crazy stuff at personal space.

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