VOICE

Your Tier 1 Telephony Partner

Whether you’re migrating to cloud-based telephony or connecting your voice infrastructure over SIP, we have you covered. Our Voice services help you take advantage of the advanced functionality and cost efficiencies these solutions bring – all backed by the global reach of the GTT Tier 1, IP backbone that supports our SIP-based voice network.

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The Benefits of
GTT Managed Networking

EXPANSIVE & SCALABLE NETWORK

Whether you’re migrating to cloud-based telephony or connecting your voice infrastructure over SIP, we have you covered. Our Voice services help you take advantage of the advanced functionality and cost efficiencies these solutions bring – all backed by the global reach of the GTT Tier 1, IP backbone that supports our SIP-based voice network.

GLOBAL
TELEPHONY FOOTPRINT

We offer one of the largest global footprints for DIDs, termination & toll-free services. We also provide emergency services in many countries.

DIVERSE TECHNOLOGIES & PLATFORMS

SIP-based interoperability with UC platforms (Microsoft, Avaya, Cisco, ShoreTel and Siemens). We have flexible access options, including public IP and private network.

WHY GTT VOICE?

Our Voice Portfolio

Whether you’re migrating to cloud-based telephony or connecting your voice infrastructure over SIP, we have you covered. Our Voice services help you take advantage of the advanced functionality and cost efficiencies these solutions bring – all backed by the global reach of the GTT Tier 1, IP backbone that supports our SIP-based voice network.

SIP Trunking

Integrating diverse communication capabilities onto a single global platform.

Cloud Phone Direct

Global, scalable & High-Performing Enterprise Voice Services

Virtual Voice Network

Easily expand your global voice footprint without making large upfront infrastructure investments

Industry Insights

Explore our collection of videos, research, guides and more with invaluable insights into our digitally networked world.

E-commerce Security: How to Protect Your Business from Cyber Threats

E-commerce success depends on trust, speed and seamless transactions. But cybercriminals are constantly working to undermine all three. Online retailers face escalating attacks, from ...

Mitigating Risk with Secure Network Services

Securing your network is more challenging and important than ever. Enterprise environments are always on, always connected, and often spread across the globe global ...

What Is DDoS Mitigation and How Does It Protect Your Business?

Cyberthreats are more sophisticated than ever, and Distributed Denial-of-Service (DDoS) attacks are among the most disruptive. These attacks flood websites, networks, or applications with ...

SD-WAN Performance Metrics That Matter

Many enterprises rely on SD-WAN to improve application performance, ensure network security and optimize costs. Whether you’re a financial services firm needing secure, real-time ...

Beautiful aerial cityscape view of the city of Leiden, the Netherlands, after sunset at night in the blue hour

SD-WAN Architecture Explained

Traditional WANs have long supported enterprise connectivity, but as businesses expand across locations, adopt hybrid work, and migrate to the cloud, new demands are ...

Cloud Integration Capabilities of SD-WAN

As businesses increasingly shift operations to the cloud, seamless connectivity is critical. SD-WAN (Software-Defined Wide Area Networking) simplifies cloud integration while optimizing network performance, ...

Security Considerations in SD-WAN Deployment

SD-WAN is reshaping enterprise connectivity by delivering greater agility, performance and control. As organizations embrace this transformation, security remains a critical focus, especially when ...

How to Shift to NSaaS Without Disrupting Operations

Keeping pace with evolving attack methods and securing every access point takes time, talent and continuous investment. That’s why more organizations are turning to ...

How Traditional and Cloud-Based Security Solutions Work Together to Strengthen Your Enterprise Network

Cybersecurity is evolving fast. As threats grow more sophisticated and distributed, so do the tools enterprises need to defend their networks. Traditional solutions, like ...

Our Gartner Rating

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