Extron Electronics DMP 128 User Guide - Manual (Page 132)

telephone
interface
This section describes the telephone interface and control, including:
• Telephone Configuration
• Telephone Dialer
• Third Party Control of the Phone Dialer
The DMP 128 provides a telephone interface with separate input and output signal
processing paths. The telephone input (Rx) is identical to the other input processing
paths except the AEC block is not available (see
Telephone Rx (DmP 128 C P and
DmP 128 C P AT only) on page 58). The telephone output (Tx) is tied to Output 8
and has separate but identical processing. This allows the same signal on the telephone
output to be monitored by output 8.
notEs:
• You must be in Live mode to access the phone dialer application.
• The country code must be entered before connecting the DMP 128 to a phone
system.
telephone configuration
The phone settings dialog provides selection of the country code, updating and importing
new country codes, and setting the dialer to generate a ring tone on the telephone Rx
channel.
notE: Extron recommends the included building blocks for the phone Tx and Rx
channels be inserted as the starting point for phone input and output processing
(see
Signal Path Building Blocks on page 105).
To generate a ring tone:
Select the Allow device to generate ring
tone. checkbox to enable (checked) the ringtone.
Select again to disable (unchecked) the ring tone.
To set or change the country code:
1. From the DSP Configurator toolbar main
menu, select Tools>Device Settings,
then select the Phone Settings tab.
2. If the correct country code is not listed after
Selected Country: , click Change Phone’s
Country Code, then select the correct
country code for your region from the
dropdown list.
3. Click Apply, then close the dialog box.
DMP 128 • Telephone Interface 126