所开发的现场通信软件屏蔽了各种设备通信方式的差异，为应用程序提供统一的通信接口。
The field communication software I developed shields the discrepancies in all kinds of device communication methods, providing a uniform communication interface for applications.
如何屏蔽分布在不同站点上的异构数据库之间的差异，是实现多个数据库互访要解决的首要问题。
How to shield the difference among the distributed heterogeneous database is the primary problem to be solved to implement the mutual visiting among the multiple databases.
采用本发明实施例，可以屏蔽接入网元或终端的差异，进行带内dtmf检测并上报到AS。
By adopting the embodiment of the invention can shield the differences of access network elements or terminals and carry out an in-band DTMF detection and report to the AS.
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