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SIP Trunking

Take your voice network to the next level and expand communication globally.

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OUR GARTNER RATING

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4.2

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62 reviews

88%

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as of the last 12 months
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Get the Reports GTT Recognized as a Leader by ISG

See Why GTT Stands Out in the Latest ISG Provider Lens™ Reports

We're proud to share that GTT has been ranked as a Leader in the 2025 ISG Provider Lens™ Software-Defined Solutions & Services reports. This recognition reflects our continued commitment to delivering secure networking as a service for global enterprises.

Read the full reports to see how GTT compares.