design for supporting the multimedia emergency voip using pstn and ip network
Internet is rapidly increased, and various services are deployed over internet. It is an important issue to support emergency service in VoIP, because many users want to use the emergency service similar to the service in PSTN network. VoIP terminals which can create audio, video, and image data are able to send multimedia data to emergency agent. But the current VoIP service cannot provide multimedia data to emergency agent, because emergency calls have to flow through PSTN network. If emergency agent has got some video as well as audio data for emergency call, it will be very helpful to rescue somebody in danger. In this paper, we will consider new network model to provide multimedia data to PSAP in emergency call.
multimedia emergency voip