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Discover a comprehensive Solutions Center hub with resources, documentation, and expert guidance for all your business communication needs.

Access our dedicated customer service team around the clock, every day of the year. Get immediate assistance when you need it most.

Stay informed with real-time service updates, maintenance alerts, and important system notifications to keep your business running smoothly.

Monitor live system performance updates and network health metrics to ensure optimal communication service delivery across all platforms.

Technical support escalation for critical issues

Project implementation and deployment issues

Sales inquiries and contract negotiations

Billing disputes and account management

Strategic account growth and optimization

There is no better relationship in the industry than ones CallTower has with its partners. Here are just a few things that make working with us truly awesome.

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At CallTower, we consider our channel partners as family, valuing successful relationships through excellent support and financial rewards.

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Discover Are benefits of our Agency Partner Program for your business. Unlock revenue streams, scalable growth, and extensive support.

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CallTower's MSP Partner Program empowers service providers by simplifying taxation and enhancing efficiency through tools including the GTx self-service platform.

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CallTower’s Global PSTN

Global PSTN: Give Your Communications Platforms a Voice

CallTower’s Cloud Voice Hub is a purpose-built solution that integrates cloud collaboration, unified communications (UC), and contact center tools with secure, certified PSTN connectivity, enabling a complete enterprise telephony solution.


Purpose-Built Cloud Collaboration

  • Designed to address the limitations of internal communication tools by providing access to external PSTN and call routing integration.
  • Available in 80+ countries, offering secure SIP PSTN connectivity to major platforms like:
    • Cisco (Webex Calling and UCM Cloud)
    • Microsoft Teams (Operator Connect and Direct Routing)
    • Genesys
    • Avaya
    • Zoom
    • NICE CXOne

Enterprise Benefits

  1. Global PSTN Consolidation:
    • Local PSTN coverage in the Americas, EMEA, and APAC.
    • Local DID numbers and number portability in 80+ countries.
  2. Single Source Provider:
    • Certified provider for PSTN management.
  3. Multi-Platform Integration:
    • On-net coordinated calling across platforms.
  4. Simplified Infrastructure:
    • CallTower Cloud SBCs eliminate the need for customer SBCs.
  5. Reliability:
    • Zero-outage, globally redundant enterprise service.

Key Features

  • Global PSTN Coverage:
    • Comprehensive coverage for collaboration, UC, and contact center platforms.
  • Multiple Platform Integration:
    • Certified and integrated with major providers like Cisco, Microsoft, Genesys, Avaya, Zoom, and NICE InContact.
  • Migration Flexibility:
    • Supports single or multiple platforms with on-net call routing for simplified management and cost reduction.

Complete PSTN Service Features

  • Local, long-distance, and on-net calling.
  • Toll-free and directory assistance.
  • Caller ID and emergency services.

Certified Solutions

  • CallTower’s global PSTN infrastructure is certified with major collaboration providers, ensuring high performance and reliability.
  • Combines world-class SIP PSTN services with leading collaboration tools to meet complex customer requirements.

Conclusion

CallTower’s Cloud Voice Hub provides a seamless, certified, and globally redundant PSTN solution, enabling businesses to consolidate and optimize their communication platforms while ensuring flexibility, reliability, and cost efficiency.

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global-pstn

CallTower’s Global PSTN