Cloud Connected PSTN (CCP)
Cisco Webex Calling with GTT: A trusted partner for Cisco Cloud Connected PSTN
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Demystifying the Migration to SIP Trunking
Read post: Demystifying the Migration to SIP Trunking
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Beyond SIP Trunking: Building a Future-Ready Communication Infrastructure
Read white paper: Beyond SIP Trunking: Building a Future-Ready Communication Infrastructure
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Setec Case Study
Read guide: Setec Case Study
Global, scalable and 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.
The benefits of Cisco Webex Calling with GTT
A complete solution
Your solution delivered end-to-end on GTT’s global Tier 1 IP backbone
Flexible and scalable
Scalable, fully redundant and robust SIP-based network designed to meet the demands of bandwidth-intensive communication services.
Secure and reliable
Secure and reliable network manged by GTT’s network operations centers across the world
Highly cost-effective service with a single rate card
Global and 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
- Full coverage international and national capabilities
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.
Cost-effective and user friendly
- Usage-based calling model
- 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
| Australia | Croatia | Hungary | New Zealand | Spain |
| Austria | Cyprus | Iceland | Norway | Sweden |
| Belgium | Czech Republic | Ireland | Peru | Switzerland |
| Brazil | Denmark | Italy | Poland | United Kingdom |
| Bulgaria | Estonia | Latvia | Portugal | USA |
| Canada | Finland | Luxembourg | Singapore | |
| Colombia | Germany | Mexico | Slovakia | |
| Costa Rica | Greece | Netherlands | Slovenia |
Discover more in our Cloud Phone Direct portfolio
Microsoft Teams
We can deliver dedicated SIP trunks to Microsoft Teams services residing in Office 365. As a Tier 1 ISP, GTT peers directly with Microsoft, ensuring the lowest latency connectivity between our voice network and Microsoft Office 365.
AnywhereNow
Easily incorporate GTT Voice with AnywhereNow cloud-based contact center, natively integrated with Microsoft Teams. You can activate a GTT SIP Trunk group to Microsoft Teams Direct routing and AnywhereNow.
Zoom Phone
With Zoom’s BYOC feature, you can use GTT SIP Trunking together with the Zoom Phone cloud. You can enjoy all of the benefits and features of Zoom Phone while benefiting from our global voice solution for outbound calling, as well as new and ported DIDs.
Complete your solution
Managed SD-WAN
Transform your WAN with dynamic network traffic management for flexibility, speed, security and cost control.
Dedicated Internet Access
High-quality internet connectivity for enterprises, delivered on our leading Tier-1 IP network.
MPLS
High-performance, secure connectivity for your global enterprise, backed by end-to-end SLAs.
Managed Detection & Response
Monitor, validate and respond to security threats faster than ever. We leverage a best-in-class SIEM platform augmented with machine learning and automation to detect sophisticated threats in cloud environments.
Our Gartner rating
Simplify your global communications
Stop overpaying for fragmented and outdated voice networks. Consolidate your communications on a global IP backbone built for performance and scale.