The phone gave me its IP address on my home network.

电话的IP地址马上显示在我的家庭网络中。

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When we met, however, we had to use the phone since voice-over IP (VOIP) was not available.

然而当我们视频时还需要使用电话，因为声音传输协议是不可利用的。

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IP multimedia Subsystem (IMS) is a set of specifications that describes the Next Generation Networking (NGN) architecture for implementing IP based telephony and multimedia services.

IP多媒体子系统(IMS)是一组规范，描述用于实现基于IP的电话和多媒体服务的下一代网络(NGN)体系结构。

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