Mediaring Ltd

Poh Yoke Lai

Wee Sin Tam

Chih-Hsiang Chou

Sin Ming Ow

Janardhana Reddy

Halim Md Noor

Steven Donald Edelson

Shafir Ahmad Hj Mastan

An apparatus and method for increasing available ports on a voice router is provided. A first gateway and a second gateway are assigned a single port number for a data stream, the direction of packet flow is identified to determine a destination gateway. The destination gateway is one of the first and second gateways, depending on the direction of the packet flow. The packets are then forwarded to the destination gateway. The voice router can further consolidate RTCP streams from a plurality of gateways into a single port on the voice router.

Port reduction for voice over internet protocol router

A network address translation apparatus and method within a Voice over Internet Protocol (VoIP) router is described. This apparatus and method operates within networking devices such as routers, switches, bridges, etc. These devices masks both source and destination addresses and may either replace or complement a firewall in providing security. According to one embodiment, network type information, corresponding to the gateways within connection, is embedded in a port number within a packet header. This network type information is extracted and analyzed to identify the network types of both gateways within the connection. According to another embodiment, a port number is assigned according to the network types of both gateways within a connection. Thus, this network type information may be identified by processing the port number on which a packet is received.

Network address translation for voice over internet protocol router

A system and method for managing the transfer of data from a server to a client over an integrated voice and data network limits the bandwidth used for sending non-voice data, such as advertising data, from a server to the client. The limit on the transmission of non-voice data ensures that enough bandwidth is available for the transmission of voice data. The system and method comprise at least one server and at least one client which are communicatively coupled over an integrated voice and data network. A transfer data rate input is sent by a client to a server. The server determines the transfer data rate for non-voice data based on the transfer data rate input. The server then sends the data, preferably non-voice data, to the client at the transfer data rate. The present invention may also comprise an intercept layer and a bandwidth management control module. The intercept layer receives the data from the server, and the bandwidth management control module, which is communicatively coupled to the intercept layer and a voice application, examines the data packets and manages the sending of an acknowledge packet to the server indicating that the data has been received. The bandwidth management control module may delay the sending of the acknowledge packet to decrease the transfer of data from the server to the client. Additionally, the bandwidth management control module may change the window size of the acknowledge packet to indicate to the server to limit the size of the data sent to the window size.

Bandwidth protection for voice over IP

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Singapore, Singapore

Poh Yoke Lai