The term PABX refers to a Private Automated Branch Exchange.
It is a business telephone network where calls are digitally routed within
the organization.
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VoIP Equipment | IP Telephony Information
With VoIP telephones, adapters and equipment, low-cost phone calls are transmitted digitally over computer networks.
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.
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.