Avaya 555-233-116 manual Definity LAN gateway system7, What is the Definity LAN gateway?

DEFINITY LAN gateway system7

What is the DEFINITY LAN gateway?

In simplest terms, the DEFINITY® LAN gateway (DLG) is an application that enables communications between TCP/IP clients and Avaya MultiVantage™ Software call processing. In more technical terms, the DLG application is software that both routes internetwork messages from one protocol to another (ISDN to TCP/IP) and bridges all ASAI message traffic (by way of a TCP/IP tunnel protocol).

NOTE:

The term “DLG application” is neutral. That is, it does not carry any platform connotations. The terms “MAPD DLG” and “co-resident DLG,” which are introduced later, are platform specific.

How the DLG application works

Here is a high level description of how the DLG application works.

■The DLG listens for client connections (a specific IP Address) over a well- known TCP port (5678).

■The client accesses the DLG services by connecting to TCP port 5678 at the IP address of the DLG Ethernet interface (or the S8300 ethernet interface), which can be a MAPD (TN801B), a processor (TN2314), or a C-LAN (TN799).

■The client then exchanges TCP tunnel protocol messages with the DLG to request a connection to a specific CTI link.

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