Voice over internet technology allows users to make voice calls using an internet connection instead of traditional phone lines. Also known as VoIP, this innovation has revolutionised communication for businesses and individuals by offering crystal-clear audio, lower costs, and enhanced flexibility across devices and locations.

What Is Voice Over Internet?

Voice over internet refers to the transmission of voice signals over IP networks, enabling real-time communication without analogue phone lines. It’s the foundation of VoIP and is used in apps, business systems, and contact centres. KLR implements enterprise-grade VoIP services using reliable connectivity and managed infrastructure.

KLR’s IT servicedesk team managing user tickets and live system alerts in a business control room

How It Works in a Business Context

VoIP converts your voice into digital packets and routes them through your business internet provider. You can make calls from IP phones, desktops, or mobile apps. It’s scalable, easy to use, and works perfectly for remote or hybrid teams. Read our comparison of VoIP and landlines to explore advantages further.

Benefits of Voice Over Internet

This technology offers lower call rates, excellent audio quality, multi-device access, and features like voicemail-to-email, conferencing, and auto-attendants. With hosted voice over IP, companies can avoid PBX hardware and enjoy cloud-based calling with minimal overheads.

Required Infrastructure for Success

To use voice over internet effectively, you need fast and stable connectivity—preferably fibre or a dedicated leased line. KLR provides networking equipment, IP telephones, and end-to-end support to ensure smooth deployment.

Security Considerations

Internet voice systems require protection from interception, spoofing, and DoS attacks. KLR integrates firewalls and security policies into all VoIP deployments. Using VPNs, encryption, and managed routers, we ensure safe and compliant voice communications.

Applications for Home and Business

Voice over internet is used in both residential and commercial setups. Businesses rely on it for high-volume calling and CRM integration, while individuals benefit from lower international call rates and app-based calling. Our IT support team helps configure and maintain both environments.

Microsoft IT support handled by KLR consultants on screens across multiple desktop monitors

Testing, Maintenance, and Support

Reliable performance requires structured cabling, bandwidth management, and diagnostics. KLR technicians use tools like a network cable tester or LAN tester to eliminate bottlenecks and ensure optimal voice traffic flow.

Explore related resources such as networking tips for SMEs, fibre vs wireless for VoIP, and our guide to choosing business internet. See all VoIP options.

Discover how voice over internet works on IETF, review solutions on Zoiper, or explore enterprise tools on 8×8.