M1x22_btone_filter_t – Maxim Integrated 73M1822/73M1922 Control Module User Manual
Page 69
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UG_1x22_053
73M1822/73M1922 Control Module User Guide
Rev. 1.0
69
7.10.3 M1X22_BTONE_FILTER_t
Description
This structure is used by the M1X22_BTONE_FILTER IOCTL to enable or to disable the billing tone. The
filter is by default disable upon initialization and can be enabled to reject a tone of specific frequency
using this IOCTL.
Prototype
typedef struct m1X22_btone_filter
{
M1X22_BTONE_FILTER_COMMAND command; /* command */
M1X22_BTONE_FREQUENCY frequency; /* billing tone frequency */
}
M1X22_BTONE_FILTER_t;
Parameters
Data Type
Name
Description
unsigned char
acz
Active termination loop.
unsigned char
dciv
DC current voltage characteristic control.
unsigned char
rgth
Ring threshold.
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