AudioCodes Mediant 3000, User Manual

Page: 530 / 872

User's Manual 530 Document #: LTRT-89729
Mediant 3000
Note: The PRT are used only for generation of tones. Detection of tones is
performed according to the CPT file.
The PRT is a .dat file containing a set of prerecorded tones that can be played by the
device. Up to 40 tones (totaling approximately 10 minutes) can be stored in a single PRT
file on the device's flash memory. The prerecorded tones are prepared offline using
standard recording utilities (such as CoolEdit
TM
) and combined into a single file, using
AudioCodes DConvert utility (refer to DConvert Utility User's Guide for more information).
The raw data files must be recorded with the following characteristics:

Coders: G.711 A-law or G.711 µ-law

Rate: 8 kHz

Resolution: 8-bit

Channels: mono
Once created, the PRT file can then be loaded to the device using AudioCodes' AcBootP
utility or the Web interface (see 'Loading Auxiliary Files' on page
525 ).
The prerecorded tones are played repeatedly. This allows you to record only part of the
tone and then play the tone for the full duration. For example, if a tone has a cadence of 2
seconds on and 4 seconds off, the recorded file should contain only these 6 seconds. The
PRT module repeatedly plays this cadence for the configured duration. Similarly, a
continuous tone can be played by repeating only part of it.
41.1.3 CAS Files
The CAS auxiliary files contain the CAS Protocol definitions that are used for CAS-
terminated trunks. You can use the supplied files or construct your own files. Up to eight
files can be loaded to the device. Different files can be assigned to different trunks
(CASTableIndex_x) and different CAS tables can be assigned to different B-channels
(CASChannelIndex).
The CAS files can be loaded to the device using the Web interface or ini file (see 'Loading
Auxiliary Files' on page 525 ).
Note: All CAS files loaded together must belong to the same Trunk Type (i.e., either
E1 or T1).
41.1.4 Dial Plan File
The Dial Plan file can be used for various digit mapping features, as described in this
section.
41.1.4.1 Creating a Dial Plan File
Creating a Dial Plan file is similar between all Dial Plan features. The main difference is the
syntax used in the Dial Plan file and the method for selecting the Dial Plan index to use for
the specific feature.
The Dial Plan file is a text-based file that can contain up to eight Dial Plans (Dial Plan
indices) and up to 8,000 rules (lines). The general syntax rules for the Dial Plan file are as
follows (syntax specific to the feature is described in the respective section):

Each Dial Plan index must begin with a Dial Plan name enclosed in square brackets