VoIP Applications
With the growth of VoIP as a means of communication, a wide variety of applications have been enabled by the VoIP networks. Among these VoIP applications the three main categories are, Branch Office Application, Interoffice Trunking Application and Interworking Cellular Application.
A Branch Office Application is a network configuration of an organization with many branch offices (e.g., a bank) that wants to reduce costs and combine traffic to provide voice and data access to the main office. 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 the data.
An Interoffice Trunking Application is basically a trunking application. In this scenario, an organization wishes to send voice traffic between two locations over the packet network and replace the tie trunks used to connect the PBXs at the locations. This application usually requires the IWF to support a higher-capacity digital channel than the branch application, such as a T1/E1 interface of 1.544 or 2.048 Mbps. The IWF emulates the signaling functions of a PBX, resulting in significant savings to companies’ communications costs.
The Interworking Cellular Application enables the users to get the benefits VoIP with cellular phones. The voice data in a digital cellular network is already compressed and packetized for transmission over the air by the cellular phone. Packet networks can then transmit the compressed cellular voice packet, saving a tremendous amount of bandwidth. The IWF provides the transcoding function required to convert the cellular voice data to the format required by the public switched telephone network (PSTN).
Read More: V/FoIP