This paper presents the new services of IP used in power system, including IP net phone, vedio conference system, IP video monitor and client service center based on IP.

介绍了IP新业务在电力系统中的应用，包括IP网络电话、IP视频会议系统、IP图像监控和基于IP的客户服务中心。

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Before now net phone firms have not been required to connect to emergency numbers.

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The ruling does not apply to all net phone firms.

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Research carried out by Ofcom suggests few people know that net phone services, aka voice over IP, do not connect to 999 or 112, the European Union's universal emergency number for mobiles and fixed lines.

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