4.1.3 Opening a Voice Channel

Open a voice channel to obtain the channel device handle. If you intend to modify board-level parameters, open a voice board. Open a network channel if applicable. See the function reference in the Voice Software Reference for more information.

On DM3 boards, the flexible routing configuration is supported (for a definition, see the Glossary). On DM3 boards, you must use GlobalCall functions for call control. On DM3 network devices, use GlobalCall functions to open and close device handles. You can choose to open a voice device together with the network device using gc_open( ), or you can open the voice device separately using dx_open( ). For SCbus routing, use digital network interface (DTI) functions.

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