Avaya R300 Benutzerhandbuch

Issue 1

November 2000

Overview of the Avaya R300 Remote Office Communicator 

3

DEFINITY Remote Office overview 

From the host LAN network, the control and bearer IP traffic streams are directed via Host 
WAN Access equipment to the WAN. This WAN access equipment typically would 
consist of the following components:

■

Router to serve as the IP gateway from the enterprise premises out to the IP-based 
WAN.

■

Access Concentrator to multiplex the LAN and TDM-based enterprise traffic 
streams into an aggregated stream to present to the wide area network.

■

Optionally a VPN service for providing enhanced security, particularly for data 
services.

■

Optionally a Frame Relay Access Device (FRAD) to wrap the traffic into a frame 
format suitable for transport over an enterprise network based upon frame relay 
PVC service.

This WAN access equipment may be provided by one or more physically separate 
products, and these products may be provided by different vendors. The industry trend is 
for increased consolidation of this equipment. 

The central wide area network services (shown as a cloud in the center of 

) can be an enterprise network, a PSTN switched network or a combination of the two. 

The technologies of the WAN may be a variety of services including frame relay, ATM, 
ISDN or digital T-carrier. In all cases, this DEFINITY Remote Office application will 
provide both the signaling and voice bearer traffic in IP -based protocol frames that are 
transported over the underlying physical frame formats.

At the far side of the WAN is the Avaya R300. You can have multiple Avaya R300 devices 
that subtend via the WAN back to a main DEFINITY system. 

The Avaya R300 provides the following features: 

■

Support for up to 24 DCP digital two-wire sets: 6400-series, 8400-series, or 
9031DCP Transtalk model (wireless base station). 

■

Support for two analog stations to which analog phones (6200-series or 
2500-series) or analog fax machines may be connected. 

■

Support for local switching between the analog and DCP station sets out through 
local central office trunks. These local trunks (local to the remote site) may be 
either digital through T1/E1/BRI WAN access trunks or, in North America, 
through 600 ohm analog trunks.

In addition to voice telephony features, the Avaya R300 provides the remote site the 
opportunity to integrate data and provides a conversion of voice and data applications in 
the same product.