Understanding the Benefits of License-free Spread Spectrum Fixed Wireless

To understand wireless technology, a basic understanding of the Radio Frequency (RF) spectrum is required.

The Basics of Internetworking

What internetworking means and how any company can simply and cost-effectively build an internetwork.

Distributed Access Solutions for the Local Loop

ADTRAN’s Total Access® System is a distributed access solution that enables carriers to strategically plan and design their next-generation networks.

Getting up to Speed on VLANs

VLANs allow IT managers to group users and resources in any way they like, regardless of the physical LAN segment to which those resources are attached.

HDSL2 Setting the Standard

HDSL2 is the next widely deployable DSL technology for the local loop.

How to Save Money

How to Save Money While Migrating Your Telephone System to VoIP.

IPv6 in the U.S.Market

IPv6 in the U.S.Market— Has it Arrived.

A Description of MGCP and SIP

This paper gives an overview of MGCP and SIP covering where they are used and the basic elements of their operation.

Overview of Mobile Communications

This paper contains a brief summary of the evolution of the mobile communications networks.

Private IP Service BGP/MPLS VPN Networks

With the advent of business communications over the Internet, private data is now transferred over a public network using another type of VPN.

Reducing Network TCO with Value-Driven, Integrated Networks

With heightened scrutiny on IT budgets it is increasingly important to minimize Total Cost of Ownership (TCO) through feature-rich, yet cost-effective, purchasing decisions.

Video Access Network Architectures

For some service providers, competition from the CATV providers will strongly influence architecture decisions due to the immediate threat of telephony or subscriber loss.

VPN–Extending ADTRAN’s Traditional WAN Solutions

VPNs allow enterprises to carve secure IP-based tunnels through the public Internet and use them to transport traffic safely and securely among sites, whether branch offices or customer and supplier locations.

VPN Interoperability Using IPSec

Virtual Private Networking (VPN) technology enables secure connections over non-secure networks through the use of the protocol suite defined as IP Security, or better known as IPSec.