Data Sheet

Operator Connect

GTT Operator Connect offers direct peering and integration with Microsoft Teams worldwide. As a Microsoft-Operator Connect partner, GTT provides PSTN connectivity via GTT SIP Trunking to Microsoft Teams offering customers a resilient, easy-to-use calling solution to keep employees productive.

GTT SIP Trunking integrated with Microsoft Teams Operator Connect

The reduction in the acquisition of telephony licencing illustrates how deeply Microsoft Teams has disrupted the unified communications marketplace, as customers move to cloud-based collaboration tools.

Microsoft Teams provides voice over IP (VoIP) and Internet Protocol (IP) private branch exchange (IP-PBX) capabilities as well as the PSTN connectivity for inbound and outbound calls. Gartner estimates that 15% of Teams user base are licensed to use as their primary telephony communications tool and by 2024, 20% of total Microsoft Teams active users will adopt telephony services for external calling on Teams.

As a Microsoft-Operator Connect partner, GTT provides PSTN connectivity via GTT SIP Trunking to Microsoft Teams offering customers a resilient, easy-to-use calling solution to keep employees productive.

Key Benefits

Global coverage

Voice network presence across the globe, DID access in over 55 countries, more than 120 countries and territories with toll-free services. National and international outbound calling worldwide. Emergency services available in many countries

Resilient architecture

Our global voice network includes redundant PoPs per region interconnected with leading regional and global carriers.

Seamless deployment

For both new and existing customers, GTT and Microsoft offer easy onboarding through the Microsoft Teams Admin Center for a successful deployment of your voice solution.

Reduce management costs

GTT SIP trucking integrated with Microsoft Teams provides simple and quick access to voice calling over a collaboration platform your employees are already familiar with.

SERVICES FEATURES

GTT Operator Connect offers direct peering and integration with Microsoft Teams worldwide.

SIP Trunking with Microsoft Teams chart

Simple & Quick to Deploy

Simplified procurement experience for customers. Customers can assign telephone numbers to users and enable GTT as their global voice carrier via Microsoft admin center.

Superior Support

GTT manages your connection 24/7/365 through our global Network Operations Center.

Highly reliable

GTT’s SIP Trunking is delivered across a diverse, low latency, Tier 1 IP Backbone including geographically redundant session border controllers for easy scalability. GTT’s fully redundant, global and robust SIP-based network is purpose-built to meet the demands of bandwidth-intensive applications like voice services.

Usage Reports

Via a user-friendly client portal, EtherVision, GTT provides customers easy access to rated Call Detail Records (CDRs). In addition, Microsoft generates CDRs which are presented via the Microsoft Teams admin portal. Customers have the flexibility to use the administrative tool the best serves their business

Industry Insights

Our Gartner Rating

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Global WAN Services

4

 
 

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As of 12 August, 2025
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