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KX series v.1.70
PSTN MENU
the entire section of the public PSTN telephone network. It ‘important to connect the control unit to a clean line. In case of lines
with internet access is essential to use special filters upstream of the line. Any phones connected to the line must be connected to
terminals T1 and T2 of the plant, in order to be released when it makes a call.
The following configuration parameters:
This parameter enables or disables the tone control of sound free / busy after dialing the number. Once the panel compose the
number hears this tone and, when it is interrupted by a response of digital receiver, it executes the set message (digital). When
disabled, the control panel will not hear this tone and most waits for a response from the recipient or digital protocols.
This parameter modifies the break dial tone once done the call. This pause changes according to the standards adopted in different
countries. In case of problems with the default setting 4.5sec. you can shorten or lengthen the pause to allow the panel to better
understand the tone of free and the responses from users / receivers.
This parameter enables or disables the control of the presence of PSTN telephone line voltage.
This parameter check for dial tone; in case of absence the system doesn’t dial.
If this parameter is enabled, in the absence of tone the system notice the event “ TEL.LINE FAIL “.
If disabled, it always dial 2/3 seconds after it has taken the line.
This parameter change the amplitude of DTMF signal, in case of noises of PSTN line, it is possible increase the amplitude of DTMF:
0 = normal signals amplitude
1 = doubble signals amplitude
This parameter is used when is disable the line control, the system take the line and wait few second before start the composistion,
the pause is used for allow the line to go in stable level. Normally when is active the control the system detect when can start the
composition, when is disabled is important set a pause.
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