For use in the serial wave INF only. Specifies the number of wave devices the serial wave driver supports.
Use one WORD for this value. Value can be 1 or 2. For example,
HKR,Config,WaveDevices, 1, 01, 00
This key can only be used to indicate whether or not a voice modem has the ability to playback and record to a handset device. If it does not have this ability, or does not have a handset device, this key should be set to 1.
If this key is set to 2, the serial wave device will report a handset and line device.
No other value can be used in this key.