CallTower UCaas, CCaaS & Collaboration News

Why Do Global Enterprises Choose CallTower For Unified Communications?

Written by Evan Lewis | Sep 3, 2026, 3:00:00 PM

Global enterprises need more than a communications platform. They need a technology partner capable of delivering reliable voice services, seamless collaboration, resilient infrastructure, regulatory compliance, and integrated customer experience solutions across multiple regions. CallTower is a global managed communications provider that helps enterprises consolidate unified communications, cloud voice, contact center, and collaboration under one strategic partnership. We combine industry-leading unified communications platforms like Microsoft Teams, Webex by Cisco, and Zoom with worldwide voice coverage, resilient infrastructure, centralized administration, and expert support. With services available in 80+ countries and support for more than one million users globally, CallTower helps global enterprises reduced complexity, improve reliability, and modernize communications at scale.

How Does CallTower Support Enterprise Voice & Collaboration Together?

CallTower helps enterprises deploy, manage, and optimize cloud communications across multiple platforms and regions. Instead of forcing organizations into a single-vendor model, we support Microsoft Teams, Webex by Cisco, Zoom, and blended communications environments. This gives IT leaders flexibility while preserving centralized management, global voice consistency, reliable PSTN connectivity, and expert support.

  • Proven UC Experience: CallTower has deep experience deploying and integrating Microsoft Teams, Webex, and Zoom.
  • Cloud-Based PSTN Connectivity: Connect Teams, Webex, Zoom, and other communications platforms to enterprise-grade global telephony services.
  • Global Voice Coverage: Deliver secure, high-quality voice services across 80+ countries through a unified global voice network.
  • 24/7/365 Support: Receive continuous technical assistance, monitoring, and expert guidance regardless of location or time zone.

What Failover & Redundancy Features Does CallTower Offer?

CallTower strengthens communications continuity through a resilient global voice architecture designed to reduce single points of failure. For enterprises that depend on voice availability across locations, departments, and customer-facing teams, we combine geo-redundant infrastructure, carrier diversity, hosted session border controllers, and call routing tools that help maintain service during outages or network disruptions.

  • Geo-Redundant Data Centers: Multiple geographically distributed data centers help ensure service continuity during regional outages.
  • Multiple Carrier Relationships: Carrier diversity enables traffic to be rerouted automatically if a carrier experiences service degradation or failure.
  • Global Session Border Controllers: A globally distributed SBC architecture provides resilient connectivity and multiple network paths.
  • Dynamic Call Routing: Calls can be intelligently routed based on availability and network conditions to maximize uptime.
  • One-Click Failover Capabilities: CallTower's One-Click Failover solution helps maintain business continuity by quickly redirecting communications during disruptions.

What Compliance Does CallTower's Platforms Meet?

Enterprise communications platforms must support security, governance, data protection, and industry-specific compliance requirements. CallTower helps regulated organizations modernize unified communications and cloud voice while addressing compliance considerations across healthcare, government, financial services, retail, legal, and other sensitive environments. Relevant compliance frameworks include:

  • HIPAA: Protects patient health information for organizations in healthcare or businesses handling PHI.
  • FedRAMP: Required for organizations working with U.S. federal agencies like the Department of Energy and Department of Defense.
  • PCI DSS: Ensures secure communications associated with payment card environments such as retail, financial services, and e-commerce.
  • ISO 27001: International information security management standard applicable to any organization managing sensitive information.
  • SOC 2 Type II: Demonstrates that security and operational controls operate effectively over time for cloud services and managed service providers. 

How Does CallTower Consolidate Voice, Collaboration, and Contact Centers?

CallTower reduces communications complexity by bringing voice, unified communications, collaboration, contact center, mobility, analytics, and support into one managed services relationship. This approach helps enterprises avoid fragmented carrier contracts, disconnected administration portals, inconsistent support models, and unnecessary vendor sprawl. For IT, operations, and CX leaders, we create a simpler path to enterprise communications modernization.

  • CallTower Connect: Manage users, provisioning, analytics, and communications services through a single, centralized administration portal.
  • Reduced Vendor Sprawl: Consolidate multiple carriers, platforms, and service providers into one trusted communications partner.
  • Decreased IT & CX Complexity: Eliminate disconnected systems and streamline communications operations across departments.
  • Streamlined Management: Centralized administration reduces operational overhead and simplifies governance.
  • Strengthened Customer & Employee Experiences: Create connected experiences by integrating collaboration and customer engagement technologies.

Which Contact Centers Work Best with CallTower's Solutions?

CallTower's strength lies not only in delivering world-class communications platforms, but also in enabling organizations to pair those platforms with industry-leading contact center solutions like Genesys Cloud, Five9, Webex Contact Center, and Zoom Contact Center. By integrating UCaaS and CCaaS technologies, we help businesses create a unified environment that supports agents, employees, and customers alike. Professional services and long-term support further ensure these solutions continue delivering value after deployment.

  • Genesys for Microsoft Teams: Deliver powerful AI-driven customer experiences while enabling agents & employees to seamlessly collaborate within Teams.
  • Five9 for Microsoft Teams: Enhance customer engagement through intelligent contact center capabilities while allowing efficient communication and collaboration.
  • Webex Contact Center for Webex: Extend the collaborative power of Webex into customer service and engagement operations.
  • Zoom Contact Center for Zoom: Create a unified communications and customer experience environment built around the Zoom ecosystem.
  • Expert Contact Center & CX Professional Services: CallTower provides specialized consulting, deployment, optimization, and support services for Genesys, Five9, Webex Contact Center, and Zoom Contact Center.

Why CallTower is a Strategic UC Partner for Global Enterprises

For global enterprises, unified communications success depends on more than selecting a platform. Organizations need reliable voice, resilient infrastructure, compliance support, contact center integration, centralized administration, and expert lifecycle management. CallTower brings these capabilities together across Microsoft Teams, Webex by Cisco, Zoom, Genesys, Five9, and other enterprise communications environments. By consolidating voice, collaboration, UCaaS, CCaaS, AI-enabled CX, and support into one managed services relationship, we help businesses simplify operations, protect continuity, improve customer and employee experiences, and scale communications worldwide with confidence.