Description
The Cisco VIC2-2BRI-NT/TE is a high-performance Voice Interface Card designed for use with Cisco 2600, 2800, 3600, 3700, and 3800 Series routers, providing flexible digital voice connectivity. This module features two BRI (Basic Rate Interface) S/T ports that support both Network Termination (NT) and Terminal Equipment (TE) modes, allowing for versatile deployment in ISDN environments. Its compact form factor ensures seamless integration into compatible router chassis, making it an efficient choice for expanding voice capabilities without occupying excessive space. The card is ideal for small to medium-sized businesses looking to support digital voice services over ISDN lines.
Technically, the VIC2-2BRI-NT/TE supports Layer 1 and Layer 2 ISDN protocols and offers echo cancellation, voice activity detection, and comfort noise generation for improved call quality. It includes onboard DSPs (Digital Signal Processors) to handle voice compression and packetization, reducing load on the router CPU. The dual-port configuration allows simultaneous voice or data transmission across both interfaces, enhancing communication throughput. When purchasing used, buyers should ensure that the card is tested and free of physical damage, with intact connectors and no missing components for optimal performance.