ZyXEL Elite 2864 User Guide - Page 195

• AT+VTD? The DCE returns the current beep duration and pause interval setting followed by the OK result code. • AT+VTD=? The DCE returns the permitted values for the beep duration and pause interval. The response is: (0-255), (0-255) OK • AT+VDD=, This command causes the DCE to set the DTMF detection threshold and the required period of continuous DTMF tone detection before the DCE can report a DTMF event. : The DCE uses this subparameter to select the sensitivity threshold level of DTMF detection; a lower value of this subparameter implies that the DTE wants the DCE to detect the DTMF tone more sensitively. The range of the threshold is from 0 to 15. A value of zero disables the DTMF detection. The default value is 5. : The required period of continuous DTMF tone detection before the DCE can report a DTMF event. A value of zero disables the DTMF detection. The range of the interval is from 0 to 255 in units of 5 ms. The default value is 8 (40 ms). The DCE returns the OK result code if the DCE accepts this command, or it returns the ERROR result code if any of the or values is out of range. • AT+VDD? This command causes the DCE to report the current and settings. The format of the response is: , OK • AT+VDD=? This command causes the DCE to report the permitted range of and . The response is: (0-15),(0-255) OK • AT+VSY= This command sets the DCE's voice recording resync timer. The range of is from 0 to 255 in 50ms units. The default value is 0 (disable). A value of 0 disables resync generation. In Voice Receival Mode, the speech coder is reset and generates a resync symbol - in the voice data according to this timer interval. 16-19