User`s guide

Dialogic
®
System Release 6.0 PCI for Windows
®
Release Update, Rev 62 — January 30, 2008 174
Dialogic Corporation
1.49 Adjusting DTMF Characteristics through the
CONFIG File
With the Service Update, Dialogic
®
DM/V-A and DM/V-B Media Boards now support the
ability to modify DTMF parameter values. This new functionality is provided through the
configuration file set. Changed values take effect at the time the firmware is downloaded
to the board using the Dialogic
®
Configuration Manager (DCM) utility.
This new functionality is supported by the following boards:
• Dialogic
®
DM/V480A-2T1 Media Boards
• Dialogic
®
DM/V600A-2E1 Media Boards
• Dialogic
®
DM/V960A-4T1 Media Boards
• Dialogic
®
DM/V1200A-4E1 Media Boards
• Dialogic
®
DMV600BTEP Media Boards
• Dialogic
®
DMV1200BTEP Media Boards
• Dialogic
®
DMV3600BP Media Boards
1.49.1 Feature Description
Previously, DTMF characteristics were hardcoded and not adjustable by the user. With the
Service Update, you can now adjust DTMF parameter values, such as amplitudes and
on/off durations, in the Tone Templates [tonegen] section of a particular media load
CONFIG file. Default values are provided that are consistent with previous service
updates and system releases to preserve backward compatibility.
After adjusting one or more DTMF parameter values in a CONFIG file, you must download
the firmware to the board using the Dialogic
®
Configuration Manager (DCM). For more
information on modifying FCD file parameters, see the Dialogic
®
DM3 Architecture PCI
Products on Windows
®
Configuration Guide.
DTMF parameter values are not modifiable through API functions.
Note: Use caution when modifying DTMF parameter values. The DCM does not prevent you
from specifying values outside of industry specifications.
1.49.2 DTMF Characteristics and Default Values
The DTMF characteristics, such as amplitudes and on/off durations, are described as
follows for each DTMF: