IP电话——无声的演进  

IP Telephony——A Silent Evolution

作　　者：晓寒 

出　　处：《世界电信》2001年第8期36-38,56,共4页World Telecommunications

摘　　要：目前 ,IP电话的发展速度放缓 ,但运营商现在热衷于利用它为企业客户提供语音VPN业务。At present, the rate of development of IP telephony is abating, but operators are zealous for providing IP-based voice VPN services for enterprise customers. As an intelligent support technology, the soft switching technology exerts enormous impact on the conventional voice switching market.

关 键 词：IP电话 语音业务 VPN业务 软交换 

分 类 号：TN916[电子电信—通信与信息系统]