Asserts a supervisory signaling pattern at the station.
DWORD cdiAssertSignal ( CTAHD ctahd, DWORD pattern)
|
Argument |
Description |
|
ctahd |
Context handle. |
|
pattern |
Bit mask to assert. Refer to the Details section for more information. |
|
Return value |
Description |
|
SUCCESS |
|
|
CTAERR_INVALID_CTAHD |
Invalid handle. |
|
CTAERR_BAD_ARGUMENT |
Argument is not in the valid range. |
cdiAssertSignal asserts a signaling pattern at a station. pattern can be any of the following values:
|
Pattern value |
Description |
|---|---|
|
0x00 |
Battery off, no ringing. |
|
0x08 |
Battery on, no ringing. |
|
0x0C |
Battery on, continuous ringing. |
cdiAssertSignal is not intended for use in typical applications. The supervisory signaling is transparently controlled by the on-board DSP. Use this function when special purpose applications require explicit control of the supervisory signaling. In such cases, disable enhanced mode as described in CX 2000 modes.
Refer to Sending and receiving signaling patterns for more information.