Oki 1.2 - page 40

Network Address Translation (NAT)

The VoIP-TA can also be used with networks that have the following

three types of NAT (Network Address Translation) functions.

Static NAT

IP addresses are translated one to one, between the global address space

and private address space, where the translation table can be set in a

static manner.

32 Setup

Static IP Masquerade (no port number translations)

Multiple private IP addresses are assigned to a global IP address and this

assignment can be set in a static manner. No port number translation is

performed.

PI1

PI2

PI3

GI4

GI5

GI1

GI2

GI3

PI: Private IP address. GI: Global IP address. Solid line squares

represent existing terminals, where dotted line squares are

virtual terminals visible only through the NAT function.

PI1

PI2

PI3

GI4

GI5

GI1

Private address space Global address space

Contents

Main Page Page Contents Important Safety Instructions v Introduction vii I Outline 1 II Installation 5 III Placing Calls 8 IV Setup 17 Important Equipment Information 50 Warranty and Service 51 Oki Service Offices 52 Important Safety Instructions Page Introduction Welcome to the world of Oki Internet telephony I Outline The VoIP-TA Features Front Panel LEDs Back Panel Connectors Table 1 Page Page Cautions During installation During use III Placing Calls Via an IP Network General Operation Services Third party incoming call during another call Page Page Absent service Details of Services Using both a PSTN line and the IP network Page Page Page IV Setup Maintenance Console Software Requirements Installing the Maintenance Console Software Maintenance Console Software Compatibility Functions of the Maintenance Console Software Data Setup Procedure Activating and Deactivating the Softwares Functions Page Changing Modes and Setup Conditions Changing to the Setup mode Changing setup conditions Saving all setup conditions in a file Page Setup (VoIP-TA setting)Window Basic settings for the PSTN line Page Example VoIP-TA will operate in the following way when the internal address table is used. Page Page Page Page Page Page Gatekeeper settings Detailed gatekeeper settings Address table Page Details Voice settings Voice codec setting and bandwidth used G.729A G.723.1 G.711 Page Page V Maintenance Functions of the Maintenance Console Software Verifying the Software Version Information Checking the Operation Status of the VoIP-TA Explanation of the displayed information Click the Close button. Updating Unit Programs Changing the password VI Troubleshooting VII Specifications Protocol and service port number used with the VoIP-TA. Note Important Equipment Information Warranty and Service Warranty Period Following the warranty period Oki Service Offices Head Office London Office Sydney Office Oki Network Technologies