SOFTWARE BASED VOIP MULTI CHANNEL MULTI ACCESS

Brand	Owner (click to sort)	Address	Description
CLEAR-COM CONCERT	CLEAR-COM	1301 Marina Village Parkway Suite 105 Alameda CA 94501	Software based VoIP multi-channel/multi access professional communications system based on a dedicated client/server architecture, namely, computer software for VoIP;The drawing is amended to appear as follows: CLEAR-COM CONCERT;CLEAR COM CONCERT; CLEAR COMMUNICATIONS CONCERT;
SOFT-COM	The Vitec Group plc	Bridge House, Heron Square Richmond TW91EN United Kingdom	Software based VoIP multi-channel/multi access professional communications system based on a dedicated client/server architecture, namely, computer software for VoIP;SOFT-COMMUNICATION;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

A method for sending a dual-tone multi-frequency (DTMF) signal using a voice over Internet protocol (VoIP). A user datagram protocol (UDP) port is set up for transfer of DTMF data between a VoIP gateway and a VoIP client. If a caller inputs a numeral key in a VoIP-based call connection state, the VoIP client requests the VoIP gateway to send information regarding a digital signaling processor (DSP) channel currently established therein. The VoIP gateway retrieves the currently established DSP channel information on the basis of an IP address of the VoIP client and sends the retrieved DSP channel information to the VoIP client. The VoIP client sends DTMF data corresponding to the inputted numeral key to the VoIP gateway through the set-up UDP port. The VoIP gateway receives the DTMF data from the VoIP client through the UDP port, generates a DTMF signal corresponding to the received DTMF data and sends the generated DTMF signal to the VoIP client's counterpart. Therefore, the DTMF signal can be accurately sent to the counterpart, and routing information for transfer of the DTMF data is provided by sending DSP channel information of a current VoIP call to the VoIP client and a Web call server.