Planning
Installation Manual
15
2.1.2
DNS
In networks not using an H.323 Gatekeeper, DNS facilities are used to perform telephone
number-to-IP address translations. When DNS is used, the DNS facility provides each KX-
TDA0480 in the network with the network IP address-to-telephone number information
needed to communicate with other units in the network.
The KX-TDA0480 has an internal DNS facility that can be used to perform this task.
Characteristics
For the KX-TDA0480 internal DNS, this information is recorded and uploaded to all units
using the KX-TDA0480 DNS.DAT file.
The MCS is used to generate and upload the DNS.DAT file containing definitions for up to 511
units. The following information is entered during DNS.DAT file creation:
•
Unit Code
•
Number of digits in the unit's extension number
•
Unit's IP address
•
Connection port no.
Whenever units are added to a network or their number plans changed, all DNS configuration
files must be updated. DNS configuration files should only be uploaded to units AFTER all
network units have been setup in the MCS.
2.1.3
G3 Fax
The KX-TDA0480 is capable of transmitting faxes using the data network to which the unit is
connected and will automatically differentiate between fax and voice transmissions. Fax
communication over a data network uses error-checking flow control protocols that assure
accurate transmission.
When this feature is used, each unit supports up to four fax terminal connections. During fax
transmission, the ports in use are temporarily unavailable for voice communication. The fax
unit is connected to PBX unit port using a 2-wire line.
The following information should be considered when installing and using the KX-TDA0480's
fax features.
Characteristics
•
G3 fax conforms to ITU-T Rec. T.30 standards
•
Up to four fax lines per unit
•
Communication configuration is 14400, 9600, 7600, 4800 or 2400 bps with no fall back
Operational limits
•
Manual transmission and voice reservation functions of the G3 fax terminal cannot be used.
•
Up to four fax communications per unit can be conducted at a time.
Summary of Contents for KX-TDA0480
Page 5: ...KX TDA0480 Overview Installation Manual 5 Section 1 KX TDA0480 Overview ...
Page 76: ...Logical Installation 76 Installation Manual ...
Page 89: ...Logical Installation Installation Manual 89 Access Code Dialling Not usable ...
Page 137: ...Appendices Installation Manual 137 Appendix A Appendices ...
Page 164: ...Appendices 164 Installation Manual ...
Page 173: ...Glossary Installation Manual 173 ...