In this section, we will discuss the use of mobile data packets, GPRS, to access the WebRTC client in WebRTC-enabled mobile browsers. Through generations of telecom evolution, the connectivity to IP network has undergone a significant change. The first generation services, which comprised fixed line phones such as Public Switched Telephone Network (PSTN) / Integrated Switched Digital Network (ISDN), had no connectivity to the packet-switched world. However, as the second generation of telecom arrived, there emerged GSM (2G) and GPRS (2.5G), which enabled a web phone to access the Internet through data packets. The speed and performance of IP connectivity accelerated with the introduction of 3G and 4G, which enable high-speed multimedia sharing and real-time streaming.

The GPRS support nodes are responsible for transmitting IP packets to GSM or Universal Mobile Telecommunications System (UMTS) devices. GPRS services are mainly provided through GPRS...