Using Voice over IP (VoIP) in Mobile Networks
Source: Global Knowledge
Early in the last decade, service providers viewed VoIP as a threat to their traditional revenue streams. This has turned out to be true and is made possible by VoIP and the Internet, which is not distance-sensitive with respect to the cost of access. It is clear that VoIP will play an even more prominent role in all telecommunications networks moving forward and will completely replace circuit-switched voice.