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CLOUD CONNECTED PSTN (CCP)

Cisco Webex Calling with GTT

A trusted partner for Cisco Cloud Connected PSTN

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Global, Scalable & High-Performing Enterprise Voice Services

Combine Cisco’s full Cloud Webex Calling Service with SIP Trunking from GTT to transform your business. Webex calling and collaboration will help drive productivity and efficiency by integrating diverse communication capabilities onto a single global platform. GTT Enterprise Voice supports PSTN calling, global termination, DIDs in over 55 countries and emergency services.

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High-Performing & Secure

Complete Solution

Your solution delivered end-to-end on GTT’s global Tier 1 IP backbone

Flexible & Scalable

Scalable, fully redundant & robust SIP-based network designed to meet the demands of bandwidth-intensive communication services.

Secure & Reliable

Secure and reliable network manged by GTT’s network operations centers across the world

Global & Low-Latency

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Industry-leading Session Border Controllers in every continent make it easy to scale.

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Low-latency improves call quality due to local presence and termination.

Global coverage
Visibility & Transparency

Premium Service

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Full suite of communications services, including DIDs, toll-free, termination and emergency services.

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Carrier suite of national and international carriers.

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National voice services supported by locally connected interconnects.

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Highly Cost-Effective Service
With a Single Rate Card

Truly Global

Full coverage international and national capabilities

Cost Effective

Usage-based calling model.

User-Friendly

Simple rating structure makes it easy to manage costs

GLOBAL Availability

With GTT’s managed services, eliminate resource and time constraints and reduce CapEx. Choose from Enterprise, Premium, or Standard tiers for the right mix of service levels and co-management options

Austria France Portugal
Belgium Germany Romania
Brazil Greece Slovakia
Bulgaria Hungary Slovenia
Canada Ireland Spain
Croatia Italy Sweden
Cyprus Lithuania Switzerland
Czech Republic Mexico United Kingdom
Denmark Netherlands USA
Estonia Norway Poland
Finland

Industry Insights

Explore our collection of videos, research, guides and more with invaluable insights into our digitally networked world.

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E-commerce Security: How to Protect Your Business from Cyber Threats

E-commerce success depends on trust, speed and seamless transactions. But cybercriminals are constantly working to undermine all three. Online retailers face escalating attacks, from ...
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Mitigating Risk with Secure Network Services

Securing your network is more challenging and important than ever. Enterprise environments are always on, always connected, and often spread across the globe global ...
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What Is DDoS Mitigation and How Does It Protect Your Business?

Cyberthreats are more sophisticated than ever, and Distributed Denial-of-Service (DDoS) attacks are among the most disruptive. These attacks flood websites, networks, or applications with ...
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SD-WAN Performance Metrics That Matter

Many enterprises rely on SD-WAN to improve application performance, ensure network security and optimize costs. Whether you’re a financial services firm needing secure, real-time ...
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Beautiful aerial cityscape view of the city of Leiden, the Netherlands, after sunset at night in the blue hour

SD-WAN Architecture Explained

Traditional WANs have long supported enterprise connectivity, but as businesses expand across locations, adopt hybrid work, and migrate to the cloud, new demands are ...
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Cloud Integration Capabilities of SD-WAN

As businesses increasingly shift operations to the cloud, seamless connectivity is critical. SD-WAN (Software-Defined Wide Area Networking) simplifies cloud integration while optimizing network performance, ...
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Security Considerations in SD-WAN Deployment

SD-WAN is reshaping enterprise connectivity by delivering greater agility, performance and control. As organizations embrace this transformation, security remains a critical focus, especially when ...
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How to Shift to NSaaS Without Disrupting Operations

Keeping pace with evolving attack methods and securing every access point takes time, talent and continuous investment. That’s why more organizations are turning to ...
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How Traditional and Cloud-Based Security Solutions Work Together to Strengthen Your Enterprise Network

Cybersecurity is evolving fast. As threats grow more sophisticated and distributed, so do the tools enterprises need to defend their networks. Traditional solutions, like ...
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Our Gartner Rating

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Global WAN Services

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As of 9 May, 2025

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