语音呼叫连续性业务标准进展

Progress on Voice Call Continuity Standardization

基于IP多媒体子系统(IMS)的语音呼叫连续性解决方案是实现固定移动融合(FMC)的一种方式,可以实现从电路交换方式向IMS方式的过渡和演进。语音呼叫连续性(VCC)解决方案采用IMS控制模型,通过在IMS域中引入VCC应用,对语音呼叫进行控制,实现语音呼叫的连续性。基于IMS的VCC解决方案可以在不改变移动网络的前提下,实现固定移动融合。

The Voice Call Continuity （VCC）-based IP Multimedia Subsystem （IMS） solution can accomplish Circuit Switched （CS）-IMS handover and is a approach to Fixed-mobile Convergence （FMC）. The VCC solution is based on the IMS control model. As an IMS application, VCC enables continuity of services through call control procedures. The IMS-based VCC solution could achieve FMC without changing the mobile network.