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  • VoIP Media Gateways
    VoIP Media Gateways

    VoIP Media Gateways function as translation units between packet based networks and dissimilar telecommunications networks such as PSTN. VoIP gateways transmit voice data packets over PSTN using an E-carrier interface or a T-carrier system.

    What is a VoIP media gateway?

    This podcast discusses, in considerable detail, the four protocols used in VoIP media gateways, as well as what a media gateway itself is, what it does and how it works. If you've always wondered how VoIP works, this is your opportunity to tune in and learn about the technical underpinnings of this transformational technology.


    VoIP Media Gateway Controllers

    Media Gateway controllers, also known as "Call Agents", manage and control the gateway unit, while a Media Gateway Control Protocol (MGCP) is the protocol standard that bridges the network communications.

    VoIP Media Gateways have been deployed to make the transition between VoIP and PSTN networks. After exploring this seemingly mature technology I discovered that the VoIP media gateways of tomorrow are not your Grampa’s gateway. While cost remains at the top of the product selection criteria, more and more functionality is being poured into the media gateway’s hardware and software features.

    The standard gateway features list used to include things like voice, video, and fax decompression, call routing, signaling control, and packetization. More recently, we now see added features such as integrated SS7 inside the gateway and “any-to-any” signaling.
    Media gateways are special gateways that are responsible for call origination, call detection, analog-to-digital conversion of voice, and creation of voice packets . In addition, media gateways have optional features, such as voice (analog and/or digital) compression, echo cancellation, silence suppression, and statistics gathering.

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  • VoIP Definition :: Definition of VoIP
    VoIP - definition:
    VoIP stands for Voice over Internet Protocol

    Quick definition of VoIP is an Internet Phone


    Definition:
    VoIP stands for Voice over Internet Protocol. Using VoIP, voice information is converted into digital packets and sent over the Internet, and then converted back into analog signals before reaching the phone receiver at the other end.


    Definition of VoIP

    (Voice Over IP) A digital telephone service that uses the public Internet as well as private backbones instead of the traditional telephone network. Many companies, including Vonage, 8x8 and AT&T (CallVantage), typically offer calling within the country for a fixed fee and a low per-minute charge for international. Broadband Internet access (cable or DSL) is required, and regular house phones plug into an analog telephone adapter (ATA) provided by the company or purchased from a third party.


    What is VoIP?
    VoIP (voice over IP)     is an IP telephony term for a set of facilities used to manage the delivery of voice information over the Internet.VoIP involves sending voice information in digital form in discrete packets rather than by using the traditional circuit-committed protocols of the public switched telephone network (PSTN). A major advantage of VoIP and Internet telephony is that it avoids the tolls charged by ordinary telephone service.


    VoIP in short non-technical terms
    it allows all users of broadband Internet access to make and receive regular phone calls via internet or to talk computer to computer across the planet - usually in local phone call quality.



    VoIP is widely employed by carriers, especially for international telephone calls.VoIP offers a substantial cost savings over traditional long distance telephone calls. The main disadvantage of VoIP is, like cell phones, a greater potential for dropped calls and generally lesser voice quality.It will also allow existing VoIP systems to interface with the conventional PSTN and mobile phones.VoIP providers offer users the ability to register their address so that 9-1-1 services work as expected.



    Tags : VOIP Definition , Definition of VOIP , Definition Voip, What is VOIP

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  • VoIP (Voice over Internet Protocol) VoIP (Voice over Internet Protocol) is simply the transmission of voice traffic over IP-based networks.The Internet Protocol (IP) was originally designed for data networking. The success of IP in becoming a world standard for data networking has led to its adaptation to voice networking.

    Advantages of Using VoIP
    VoIP technology uses the Internet's packet-switching capabilities to provide phone service. VoIP has several advantages over circuit switching. For example, packet switching allows several telephone calls to occupy the amount of space occupied by only one in a circuit-switched network. Using PSTN, that 10-minute phone call we talked about earlier consumed 10 full minutes of transmission time at a cost of 128 Kbps. With VoIP, that same call may have occupied only 3.5 minutes of transmission time at a cost of 64 Kbps, leaving another 64 Kbps free for that 3.5 minutes, plus an additional 128 Kbps for the remaining 6.5 minutes. Based on this simple estimate, another three or four calls could easily fit into the space used by a single call under the conventional system. And this example doesn't even factor in the use of data compression, which further reduces the size of each call.

    Types of VoIP :

    Computer to computer - FREE
    Computer to phone - $$Phone to phone
    Phone to phone

    A Presentation of The Different VoIP Features
    VoIP offers an abundant amount of interesting, useful and enhanced features, many of which come free with service packages from VoIP service providers. Which feature you want to include in your VoIP service package will depend on your communication needs.There are features that allow you to manage your calls, to access additional services, to enjoy additional handy tools and to make your VoIP experience rich and sophisticated. Some of these features can be business tools while others can be truly helpful communication tools among friends and relatives.Below is a list of the VoIP features you can have with your service provider. Each list item below links to a glossary explaining the feature.

    Basic VoIP Features
    Caller ID
    Voicemail Fax
    3-Way Calling
    Call Blocking
    Call Waiting
    Call Forwarding
    Caller ID With Name
    Last Number Re-dial 411
    Directory
    Local Number Portability
    911 Service

    more

  • Voip (Voice over Internet Protocol ) VoIP (Voice over Internet Protocol) is simply the transmission of voice traffic over IP-based networks.The Internet Protocol (IP) was originally designed for data networking. The success of IP in becoming a world standard for data networking has led to its adaptation to voice networking.

    Advantages of Using VoIP
    VoIP technology uses the Internet's packet-switching capabilities to provide phone service. VoIP has several advantages over circuit switching. For example, packet switching allows several telephone calls to occupy the amount of space occupied by only one in a circuit-switched network. Using PSTN, that 10-minute phone call we talked about earlier consumed 10 full minutes of transmission time at a cost of 128 Kbps. With VoIP, that same call may have occupied only 3.5 minutes of transmission time at a cost of 64 Kbps, leaving another 64 Kbps free for that 3.5 minutes, plus an additional 128 Kbps for the remaining 6.5 minutes. Based on this simple estimate, another three or four calls could easily fit into the space used by a single call under the conventional system. And this example doesn't even factor in the use of data compression, which further reduces the size of each call.

    Types of VoIP :

    Computer to computer - FREE
    Computer to phone - $$Phone to phone
    Phone to phone

    A Presentation of The Different VoIP Features
    VoIP offers an abundant amount of interesting, useful and enhanced features, many of which come free with service packages from VoIP service providers. Which feature you want to include in your VoIP service package will depend on your communication needs.There are features that allow you to manage your calls, to access additional services, to enjoy additional handy tools and to make your VoIP experience rich and sophisticated. Some of these features can be business tools while others can be truly helpful communication tools among friends and relatives.Below is a list of the VoIP features you can have with your service provider. Each list item below links to a glossary explaining the feature.

    Basic VoIP Features
    Caller ID
    Voicemail Fax
    3-Way Calling
    Call Blocking
    Call Waiting
    Call Forwarding
    Caller ID With Name
    Last Number Re-dial 411
    Directory
    Local Number Portability
    911 Service

    more

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