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MSDN Library Visual Studio 6.0 > Knowledge Base > Windows NT
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MSDN Library Visual Studio 6.0 > Knowledge Base > Windows NT
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MSDN Library Visual Studio 6.0 > Platform SDK > Networking and Distributed Services > Telephony Application Programming Interface (TAPI) > TSPI Version 2.1 > Overviews > Line Devices > Relationships Between Lines, Channels, and Addresses