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.
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
WHY GTT VOICE?
Diverse global communications services integrated onto one connection.
Interoperable with key UC platforms and legacy infrastructure. Supports direct routing to Microsoft Teams, Cisco Webex Calling & Zoom Phone.
Global SIP-based voice network, which includes industry-leading Session Border Controllers for easy scalability.
Comprehensive telephony footprint with DIDs in 55+ countries and toll free in 120+ countries.
Low latency global outbound calling using our IP backbone to deliver locally terminated calls.
Free office-to-office calls.
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.
Virtual Voice Network
Industry Insights
Explore our collection of videos, research, guides and more with invaluable insights into our digitally networked world.
Beyond SIP Trunking: Building a Future-Ready Communication Infrastructure
SIP Trunking: The Backbone of Modern Voice Communication
Manufacturing’s Cyber Problem Isn’t What You Think
Manufacturing Transformation Programs Don’t Fail on Technology
From Enthusiasm to Panic: How AI Forced a New Era of Security Leadership
The Cloud Strategy Stalling Smart Manufacturing
The Access Problem Manufacturers Keep Underestimating
Why Smart Manufacturing Investments Stall at the Network
Simplicity Is a Security Strategy…and an AI Readiness Plan
Global WAN Services