Voice API for Windows Operating Systems Library Reference — November 2003 389
set physical parameters of a channel or board device — dx_setparm( )
The dxxxlib.h file contains defined masks for parameters that can be examined and set using
dx_getparm( ) and dx_setparm( ).
The voice device parameters fall into two classes:
•Board parameters, which apply to all channels on the board; voice board parameter defines
have a DXBD_ prefix.
•Channel parameters, which apply to individual channels on the board; voice channel
parameter defines have a DXCH_ prefix.
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!Board Parameter Defines
For DM3 boards, the supported board parameter defines are shown in Table 12.