Saturday, January 8, 2011

Be VoIP with satellite used IP servers?

VoIP is a digital phone Internet system that allows users with their Internet connection, phone call to work.

VoIP technology takes an analog signal (voice), converts a digital signal and sends the signal to the Internet as a data package. Receipt which is end it organized and that the person get to hear a voice can decode the VoIP software into an analog signal.

    The VoIP equipment
  1. Phone Gatewayzu place a VoIP call must have an Internet connection.
Placed a phone or computer to another with a regular phone calls are. It converts the analog signal into a digital signal can be transmitted over the Internet. After receipt of the end of the call converts the analog phone VoIP calls converted analog to VoIP phone system, who translated it digital signal.Calls to a gateway can go. If the call is transparent. Calls from an analog phone system (Bell) go to a gateway if the call to a phone.

The problem of remote access
  • While the Internet is worldwide, there are problems with network connectivity in remote locations.
  • Service provider can not cable or digital subscriber lines at all locations. If the Internet is not all. The solution is a system of satellite sends and receives signals to connect to the Internet.

    Satellite service companies
  • A number of entered the market of VoIP via satellite, including Vonage and Net2Phone VoIP providers.
  • However, to cost reduce, these suppliers have joined satellite companies like SkyFrames and Hughes Electronics. With this satellite VoIP to carriersproviders can maximize your hardware capacity.

    Quality problems
  • Appeals are system IssuesBell quality consistently and reliably.

    However, packages over the Internet can send cause delayed resulting problems.Another problem delays on the network. Placed in the same place and to receive calls. One-way 280 m/s is caused by orbit that fixed the satellite.Also geo location as the packets reach their destination, some reach speeds and others at another. This causes a breakup.Finally were signal, all VoIP transmissions with each package, that the part of the signal voice to bear. Packet loss distortion of the call, i.e. can be caused is heard the appeal in the intended way.

    Compression technologies
  • One way to guarantee the quality of voice over IP is compression technology use.
  • These technologies have the characteristic packet to shorten it is less likely among distortion.The cover most 729 codec are standard compression in the VoIP industry. This standard requires 8 kbit/S bandwidth. It is however linked (part of the configuration package) IP/UDP/RTP headers so that the actual bandwidth between 16 and 18 kbit / s is required with compression RTP (a form of packet compression) fall call bandwidth to about 10 K bps. What makes stable signal propagation and fewer errors.

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