With VoIP telephones, adapters and equipment, low-cost phone calls are transmitted digitally over computer networks.
VoIP Equipment | IP Telephony Information
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Standby UPS
Learn about Standby UPS units for consumer or professional device and data protection. Battery-powered devices can detect an outage and supply electricity.
On-line UPS
Look at Online UPS solutions with zero transfer times. These uninterruptible power sources deliver backup power for device protection.
Line Interactive UPS
A Line Interactive UPS powers equipment during the brownout or blackout, without battery drainage. Understand uninterruptible power sources that correct high voltage.
What are the different types of UPS?
UPS devices deliver critical equipment protection. Uninterruptible Power Supplies offer a full range of power management solutions.
VA
Learn about Volt-Ampere (VA) ratings on Uninterruptible Power Supply (UPS) units to prevent overloads.
D-Link Switches, Mini Adapters, IP Surveillance
Get an overview of D-Link, including product information about D-Link switches, IP surveillance products, and D-Link mini adapters.
Cisco StackWise
Catalyst Switch Stacks can be created using Cisco StackWise. Multiple switches become a logical switching stack with the technologies.
Layer 2
Layer 2 is the data link layer of the Open Systems Interconnection (OSI) model. Manage data transmissions with layer 2 devices.
Layer 3
Layer 3 is the network layer in the OSI communication model. A router operates at layer 3, determining how to send data packets.