Crestron PRO2 Manual do Utilizador descarregar pdf (Página 8)

SYMETRIX SOLUTIONS: TECH TIP

February 2014

6408 216th Street SW | Mountlake Terrace, WA 98043 USA

T +1.425.778.7728 F +1.425.778.7727 | www.symetrix.co

The acknowledgements from the Symetrix device are monitored to determine

the line status and whether the phone is ringing, etc. For example, if the control

system receives the acknowledgment

#00141=65535

Then, as shown in the following ﬁgure, the Crestron code will parse that

information and set the signal L_ringing_on to high to indicate the phone is

ringing. This signal is processed and then user interface elements are updated

and sent to the touch panel to inform the user that the phone is ringing.

Once the line has been answered by sending the command:

CS 00133 65535\0xD

the Symetrix device will send the pushed acknowledgement

#00138=65535

to indicate the line is connected.

Figure 11. Parsing the acknowledgements is performed by matching particular strings within

the data received from the Symetrix device.

The transmit mute state and the do not disturb buttons track their respective

state from the Symetrix device. Changes to the mute or do not disturb buttons

through some other way will be properly reﬂected in the user interface.

Note:

• The sample Crestron ﬁle and module are designed for one phone line.

• Set a static IP address of the Symetrix device to be controlled so the control

system can always ﬁnd the device.

• Set the IP address of the Symetrix device to be controlled in the UDP control settings.

Touch Screen Design

The Touch screen design was created in Visual Tools Pro-e v5.3.19. This

example has two main screens – the dialer screen and the incoming call screen

as shown in the following ﬁgure.

Figure 12. The sample user interface screens.

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