Crestron PRO2 Manuel d'utilisateur télécharger pdf (Page 1)

SYMETRIX SOLUTIONS: TECH TIP

February 2014

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Crestron Symetrix Dialer Example

Introduction

This tech-tip describes how to control a Symetrix Radius AEC and telephony

interface using a Crestron Pro2-style controller. A complete Symetrix Radius

conﬁguration ﬁle, the Crestron Simpl application ﬁle and custom module for

dialing the telephony interface, and the Crestron Vision Tools Pro-e touch

screen design for an Apple iPad are included and described. Although this

example uses network (UDP) control, it can be modiﬁed to support serial

(RS¬232) control.

This example supports the standard telephony features of dialing, do not

disturb, onhook/offhook, redial, and mute control. In addition the telephone

line status is displayed including ready, connected, busy, dialing, fault, and

ringing. Features not supported in this example are storing or using speed

dials, receiving caller id information, audio volume control, and audio meter

information.

While this tech-tip is based on the Crestron Pro2 controller and uses the

Crestron iPad application as the touch controller, it can be easily customized

to support other Crestron controllers and touch screens including the Crestron

XPanel PC application generator.

This tech-tip assumes the programmer is familiar with how to use SymNet

Composer and has some Crestron Control programming experience controlling

other products.

Getting Started

This tech tip starts with an overview of the SymNet Composer programming

for the Radius AEC, continues with the Crestron Simpl program and customer

dialer module, and ﬁnishes with the touch screen design.

SymNet Composer

The ﬁrst step is to create the SymNet Composer site ﬁle for your conferencing

application. The included ﬁle, SymNet v1.2 Simple ATI Card Demo.symx, is a

working example of a single line analog telephony audio conferencing project

with a single Radius AEC and analog telephony interface (ATI) card.

To aid in understanding how to control the ATI, this application focuses on the

core telephony functions to create a fully functional dialer with output mute

control. This application does not use speed dial functions, and does not

control ancillary tone gains.

This Crestron dialer application works by translating key presses on the

Crestron touch screen interface to Symetrix API commands and takes the

Symetrix command acknowledgments and updates the touch screen as

necessary.

Controller Numbers

In order for this Crestron control application to work, the SymNet Composer

site ﬁle must have controller assignments deﬁned for the telephony features as

shown in the following ﬁgure. In this ﬁgure notice that the controller numbers

have been assigned to the ATI user interface and range from 121 for the DTMF

digit 1 to 145 for the fault indicator. While in your site ﬁle these controller

numbers can be different from the ones predeﬁned in the demo site ﬁle, it is

very important that the controller number assignments used in the Composer

ﬁle match the controller numbers that the Crestron controller will be using.

More on this later when the Crestron Simpl program is introduced.

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SYMETRIX SOLUTIONS: TECH TIP 1