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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.

Cloud Phone Direct

Global, scalable & High-Performing Enterprise Voice Services

The Benefits of GTT Voice

EXPANSIVE & SCALABLE NETWORK
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.
benefits icon
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
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?

Related Services

SIP Trunking

Integrating diverse communication capabilities onto a single global platform.

Cloud Phone Direct

Global, scalable & High-Performing Enterprise Voice Services

Operator Connect For Microsoft Teams

Trusted partner of Microsoft withglobal voice services from GTT

CCP For Cisco Webex Calling

Trusted partner for CISCO cloud connected PTSN

OUR GARTNER RATING

Gartner Peer Insights logo
4.2


62 Reviews

88%
as of the last 12 months
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