
SYMETRIX SOLUTIONS: TECH TIP
February 2014
6408 216th Street SW | Mountlake Terrace, WA 98043 USA
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The input and output signals are defined in the following table.
Table 2. The description of the input and output parameters of the ATI Simple Dialer module.
In addition to the parameters defined, there are the arguments that are passed
into the dialing module that define the control numbers used by the Crestron
program. The arguments are the same control numbers assigned in the
Composer site file as shown in the following figure.
Figure 8. Control numbers for the Simple ATI dialer module (left) and assigned in the Composer
project (right). These numbers must match!
The controller numbers should be entered with leading 0’s as shown because
the controller numbers will be used to form the API commands that are sent
to the Symetrix device and also are used match against the acknowledgments
received for the controllers that have values “pushed” back to the control
system.
Parameter Description
Inputs
poll_dsp
A trigger to initialize the system by clearing the line and clearing the receive data buffer
from the Symetrix device.
from_dsp The control data stream from the Symetrix device.
L_1_press, L_2_press, …, L_0_press,
L_star_press, L_pound_press
The DTMF digit pushes from the touch panel
L_connect/disconnect_press The phone hook toggle switch. Pressing it will toggle the state from onhook to offhook.
L_clear_press Clears the digits that are in the local dialing queue and also queued on the Symetrix device.
L_delete_press
Deletes a digit on the Symetrix device that hasn’t been dialed yet. Does not affect the
local display of digits on the iPad application.
L_dnd_press Toggles the state of the Do Not Disturb function.
L_redial_press Sends a command to the Symetrix system to redial the last number dialed.
L_dismiss_press Dismisses an incoming call by enabling Do Not Disturb.
L_transmit_mute_press Toggles the mute state of the telephone transmit signal.
L_dismiss_press Dismisses an incoming call by enabling Do Not Disturb.
Outputs
polling_dsp
Indicates the Symetrix device is getting the state of the telephone interface. Not used
in this system.
to_dsp Commands sent to the Symetrix device
L_dial_buffer The local queue of digits dialed for display on the touch screen.
L_line1_status The primary status of the phone line including: Connected, Ready, Dialing, Ringing
L_line2_status The secondary status of the phone line: In Use, Busy, Intrusion, Fault.
L_dnd_on Status of the do not disturb function. High indicates enabled.
L_ringing_fb Status of whether the phone line is ringing. High indicates the line is ringing.
L_busy_fb Status of whether the phone line is busy. High indicates the line is busy.
L_connected_fb
Status of the phone line. High indicates the line is offhook. Low indicates the line is
onhook.
L_transmit_mute_fb
Status of the mute state of the telephone transmit signal. High indicates the transmit
signal is muted.
L_green_fb Status of the associated LED on the Touch panel interface. High indicates enabled.
L_amber_fb Status of the associated LED on the Touch panel interface. High indicates enabled.
L_red_fb Status of the associated LED on the Touch panel interface. High indicates enabled.
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