Voice over Data over GPRS/ EDGE Networks

GPRS or the general packet radio service is a non-voice value added technology that allows data communication over mobile phones in an Internet Protocol (IP)-based network [11]. This paper focuses on the transmission of voice over the existing data channel in GSM/GPRS networks using a Web server. Since the data channel in any network is economically viable for transmission, a mechanism to transfer voice over the existing network can prove to be a boon. Because of the fact that general packet radio service has a data rate from 56 to 114 kbps (In case of EDGE it goes upto 177.6 kbps) and has a continuous connection to internet via the GGSN & SGSN and is based on the packet switched network, so if the voice at one end be broken into data packets and transmitted through a Web server, can be reassembled at the other end. This whole process can be termed as Voice over data over Mobile (VODOM). Obviously GPRS based voice packet service should cost extremely less than the traditional circuit switched voice service.