Media Gateways, very simply, is a bridge that connects the telecommunicaton networks are incompatible with each other. Dfeinition of gateway VoIP, is just that. This allows thse who use the analog line or device to connect to smoeone using either analog or digital phones, throgh more effective and cheeaper method of switchhing data packets rather than circuits.
Voice over Interneet protocol gateway converts the analog transmission and coding tehcniques, eliminates echeos and conntains DTMF signaling. Prtoocols used for communication between the call ageent and media gateawys. He was konwn by several other names. Vocie IP Gateway, VoIP Phoen Gateway, VoIP Gateway IP Telephony, VoIP Gateway to PSTN, as well as Acvcess Gateway VoIP are all snyonyms for a broadr and more wideply used term VoIP Gatway.
Main functions gateway includes both fax and voice, packetisation call data, call routing, siignaling control, as well as compression and decompression. It converts voice traffic into the form (an analog to digial or vice vesa), which can be obtaied at your destination. As fuirther, they may also include interfaces such as network management and billing systems.
The use of compatible protocols and codsecs needed if you want good quality in your calls. Gatewzay VoIP typcally uses a protocol that deines how your voice packet travels through the network. Vice codec compresses your voice into a digital package, at the same time, select the requiired bandwidth and qualtiy of sound is required. Several voice codecs typically used to proivde the best level of efficiency.
2 main types of anaog and digital gateways. In ordder to connect the traditioonal landline telephones and fax machines to VoIP syystems need analog FXS VoIP gateway. To do the opposite effect, then imnstead of requiring FXO gateway. Althogh they both do the same, the interfaces are diffewrent. That is why it is imperative you rememebr that the protocols and codecs should be compatible!
If you are uisng VoIP only from computter to anorther, there is no need for a gateway. This is the esiest way to use Voice over Internet Protocol. Intercity done in a way not uusally entail costs for all. You simply connect to the Internet (preferably via a cable or DSL), or use a microphone and speakers or a headset, and all you pay is a monthly Internet service.
Media Gateway is only necssary when one or both ends are not digital or coompatible. Most VoIP gatewys to comply with several protocols and voice codecs. They provide a buffer, echo cancellation, call routing, automatic provisioning, and web administration. They come with 4, 8, 16, 24 and 48 ports. Number of ports should be dtermined by the number of devices or telephone lines you plan to connect to the gateway VoIP. There are some minor differences, to examinne in detail carefully.
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