Method and system for providing voice call continuity

作者: Richard P. Ejzak

DOI:

关键词: Voice call continuityHandover procedureComputer networkIP Multimedia SubsystemComputer scienceMode (computer interface)Transfer (computing)Path (graph theory)

摘要: A method and system for providing circuit-switched to IP Multimedia Subsystem voice call continuity with a single radio are provided. The exemplary embodiment takes advantage of standard RANAP signaling procedure called “directed retry” perform much better coordination between the change in mode transfer media path. With use retry”, path does not begin until handover is complete, thus significantly reducing likely amount disruption.