SIP is the foundation of the next generation telecommunications networks, called the IP Multimedia Subsystem (IMS).

SIP是被称为IP多媒体子系统(IMS)的新一代电信网络的基础。

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There is really a lot going on inside the DataAccess subsystem: generation of SQL statements, error handling, result set management, etc.

在DataAccess子系统内部实际上已经有了很多东西：SQL语句生成，错误处理，结果集管理，等等。

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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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