下一代电信网是基于IP的网络，SS7及呼叫控制原理是软交换控制系统的重要组成部分。
The next generation telecommunication networks will be based on IP. SS7 and the fundamental of call control are main components of softswitch control system.
下一代电信网是基于IP的网络，SS7及呼叫控制原理是软交换控制系统的重要组成部分。
The next generation telecommunication networks will be based on IP. SS7 and the fundamental of call control are main components of softswitch control system.
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