Voice over IP (VoIP) solution is a service that enables users to transmit or receive voice and other additional data by packet regardless of the calling zone. The interface is through the IP network, not by the existing Public Switched Telephone Network (PSTN). VoIP provides one-to- one and one-to-multi calls through the existing circuit exchange method at a low cost.
Transition to VoIP market is a global trend and is in line with the network evolution into All IP network. As VoIP can meet the user's demand for more services at a lower price and can maximize the revenues of the operator by attracting new customers and increasing each user's use of the services, the VoIP service is expected to be widely used.
Recently, VoIP market covers not only the fixed network but also expands its service coverage to cable and mobile network. As the boundary between the communication markets becomes blurred and the markets are diversified, VoIP will become a critical tool for the operators to secure their market position.
Since 2000, Telcoware has been developing and commercializing VoIP solution such as wireless PBX and the wireless 3GPP IMS and a Class 4/6 softswitch.