Set reference level to check for ringing
| Func AX |
24h |
| Param DX |
The ringing voltage level to check for (135 default)
|
| Return AX |
None |
| Delay |
None |
Set the level to reference when waiting for a ring. It is not necessary
to set this function unless RING_WAIT does not detect an incoming ring.
If this function is not set then the default value is 135. Rings are
detected by monitoring the line in an on hook state with the analog to
digital converter (ADC). Because the line is on hook, only large signals
(such as a ring) get through. Not much of the voltage from a ring gets
through so the rand of the resulting signal is quite small. The range of
valid parameter values is from 128 (the zero value, if you set it to
this you will get a ring detect from a silent line) to around 150 (the
largest value you could expect from an incoming ring). |