MET4 - MET#4VoiceOverPacket 15:00 VoiceoverPacket

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MET #4 Voice Over Packet 15:00 Voice over Packet Voice over packet is the process of transmitting voice information, which is  traditionally transmitted over plain old telephone service (POTS), over packet  networks such as internet, asynchronous transfer mode (ATM), and frame  relay. Applications enabled by the transmission of voice over packet networks First application: o Network configuration of an organization with many branches of offices  that want to reduce costs and combine traffic to provide voice and data  access to the main office. o This is accomplished by using a packet network to provide standard data  transmission while at the same time enhancing it to carry voice traffic  along with data. o Voice over packet provides the interworking function (IWF), which is the  physical implementation of the hardware and software that allows the  transmission of combined voice and data over network. o The interfaces the IWF must support in this case are analog interfaces  that directly connect to the telephones or key systems o The IWF must emulate the functions of both a personal branch exchange  (PBX) for the telephony terminals at the branches as well as the functions  of the telephony terminals for the PBX at the home office. The IWF  accomplishes this by implementing signaling software that performs these  functions.  Second application: o Is a trunking application o An organization wants to send voice traffic btw two locations over the  packet network and replace the tie trunks used to connect the PBXs at the  locations. o
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This note was uploaded on 12/11/2010 for the course TEL 355 taught by Professor Staff during the Spring '08 term at Kentucky.

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MET4 - MET#4VoiceOverPacket 15:00 VoiceoverPacket

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