CLOUD CONNECTED PSTN (CCP)
Cisco Webex Calling with GTT
A trusted partner for Cisco Cloud Connected PSTN
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.
High-Performing & Secure
Complete Solution
Your solution delivered end-to-end on GTT’s global Tier 1 IP backbone
Flexible & Scalable
Secure & Reliable
Global & Low-Latency
Industry-leading Session Border Controllers in every continent make it easy to scale.
Low-latency improves call quality due to local presence and termination.
Premium Service
Full suite of communications services, including DIDs, toll-free, termination and emergency services.
Carrier suite of national and international carriers.
National voice services supported by locally connected interconnects.
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.
The Operational Advantages of SD-WAN and SASE from GTT
GTT Wins Intelisys’ Most Improved Channel Program: A Deep Dive into Partner-Obsessed Momentum
ISG ranks GTT as a leader in SD-WAN and SASE in the U.S. and the U.K. and in SD-WAN in Germany
Why Private Cloud Is Surging and What It Means for Your Network
Navigating the Surge: Effective Strategies for DDoS Mitigation in 2025 and Beyond
E-commerce Security: How to Protect Your Business from Cyber Threats
Mitigating Risk with Secure Network Services
What Is DDoS Mitigation and How Does It Protect Your Business?
SD-WAN Performance Metrics That Matter
Global WAN Services
Let’s talk
Schedule a Consultation