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.
Talk to an Voice Expert
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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.
The Benefits of GTT Voice
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 & Siemens). Flexible access options, include public IP & private network.
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.
Related Services
SIP Trunking
Integrating diverse communication capabilities onto a single global platform.
Operator Connect For Microsoft Teams
Trusted partner of Microsoft withglobal voice services from GTT
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