User`s manual

H.323 User's Manual 5. Web Management
Version 5.0 189 December 2006
5.8.2 Auxiliary Files
The ‘Auxiliary Files’ screen enables you to load various files to the gateway, as described
in Table 5-43. For detailed information on these files, refer to Chapter 16 on page 367. For
information on deleting these files from the Mediant 1000, refer to Section 5.7.3 on page
183. The table presents a brief description of each auxiliary file.
Table 5-43: Auxiliary Files Descriptions
File Type Description
Coefficient This file (different file for FXS and FXO modules) contains the telephony interface
configuration information for the VoIP gateway. This information includes telephony
interface characteristics, such as DC and AC impedance, feeding current and ringing
voltage. This file is specific to the type of telephony interface that the VoIP gateway
supports. In most cases you have to load this type of file.
CAS
Up to 8 different CAS files containing specific CAS protocol definitions for digital
modules. These files are provided to support various types of CAS signaling.
Call Progress Tones This is a region-specific, telephone exchange-dependent file that contains the Call
Progress Tones levels and frequencies that the VoIP gateway uses. The default CPT file
is: U.S.A.
Prerecorded Tones The dat PRT file enhances the gateway’s capabilities of playing a wide range of
telephone exchange tones that cannot be defined in the Call Progress Tones file.