Soft switch, as the core technology of NGN is drawing the industry's attention.

软交换作为下一代网络的核心技术，受到业界的普遍关注。

youdao

Soft switch, as the core technology of NGN is drawing the industry's attention.

软交换作为下一代网络的核心技术，受到业界的普遍关注。

youdao