Verizon Communications announced a deal with Nortel Networks on Tuesday, the latest carrier moving to add packet-switching technology to its voice network. Other carriers are also slowly moving toward ...

As we mentioned last time, there was an entire industry built around using TDM bandwidth efficiently due to the compelling economics of building corporate private-line networks. By the late 1980s, ...

A digital network technology that breaks up a message into smaller chunks (packets) for transmission. Unlike circuit switching in traditional telephone networks, which requires the establishment of a ...

In packet switching architectures, multicast transmission to two or more ports is inherent to the forwarding mechanics of certain protocols while strictly operational necessities in others. For ...

Circuits as WAN connections battled successfully against packets for years because they guaranteed bandwidth, no matter what. If you bought a T-1 circuit, the service provider nailed up 1.5Mbps from ...

You may recall that Ethernet networks are based on a protocol calledCarrier Sense Multiple Access with Collision Detection, commonly knownas CSMA/CD. This means that data packets from the various ...

These ToP (Timing-over-Packet) devices are specifically designed to transmit timing and synchronization over asynchronous packet switched networks. Deploying Zarlink’s revolutionary ZL 30301 and ...

Verizon Communications this week announced plans to shift its nationwide telecommunications network to packet-switched technology as part of a plan to offer new voice-over-IP and multimedia services.

The infrastructure of 2G and 3G cellular networks are similar. They comprise an air interface between the user's mobile device and the base station and two core networks; one for circuit-switched ...

Despite the industry attention it has received, voice-over-IP (VoIP) is not the only way to send voice across a packet-switched network. In fact, it may not even be the best approach for some ...

Sprint is to change its entire circuit-switched telephone network to packet technology in an attempt to keep up with customer demand for capacity, it announced Tuesday. All eight million of Sprint’s ...