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SIP Trunking

One Connection to Global Communication

Benefits Of SIP Trunking
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Moving to SIP is Easy­­­

Enterprises are looking for seamless interoperability with legacy systems. We enable integration of your critical business communication capabilities over a single IP connection, improving your collaboration and infrastructure efficiency.

Our SIP Trunking transforms how you do business helping drive productivity and efficiency by integrating diverse communication capabilities onto a single global platform. 

The Benefits of SIP Trunking

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GLOBAL REACH

Enterprise quality calling across the globe.

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EASY TO INTEGRATE

Seamlessly integrate with any mix of legacy telephony equipment.

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RELIABLE

High quality, secure, and always on.

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COST EFFECTIVE

Free office-to-office calls + a single global cost model.

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Comprehensive Global Footprint

We offer a full suite of international services, including DIDs, toll-free, termination and emergency services, providing expansive reach on a global basis.

Our global, fully redundant and robust SIP-based network has been specifically designed to meet the demands of your bandwidth-intensive communication services.

Drives Cost Savings

SIP Trunking is capex-efficient and easily integrated with our SD-WAN, MPLS or Internet services, so eliminating the need for public switched telephone network (PSTN) gateways and ISDN BRIs or PRIs.

The service also reduces local and long-distance costs as site-to-site calling is included at no charge. Managing outbound calling is simple, as calls are charged from a single, shared rate card for all sites.

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Why GTT SIP Trunking?

  • 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.
Talk to a GTT Voice Expert

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Our Gartner Rating

Gartner Peer Insights Reviews
4.2


62 Reviews

88%
as of the last 12 months

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