
CallTower Connect is the self-service provisioning and management portal providing access to 25+ APIs for automating user management, number assignment, configuration, and reporting across CallTower's UCaaS platforms. Enterprises with dynamic headcounts, frequent moves/adds/changes, or integration requirements with HR systems and IT workflows use CallTower Connect to reduce manual provisioning overhead and eliminate ticketing delays.
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More from CallTower
CallTower's Native Microsoft Teams Direct Routing connects the Microsoft Teams platform to the PSTN — enabling users to make and receive external calls directly within Teams without a separate phone system. As a Microsoft-certified Direct Routing provider, CallTower delivers PSTN connectivity through a fully managed service with E911, SMS, and failover capabilities built in.
CallTower Operator Connect provides PSTN calling for Microsoft Teams through Microsoft's Operator Connect program — a managed service model where the carrier relationship is established directly within the Teams Admin Center. Operator Connect simplifies provisioning compared to Direct Routing by eliminating on-premises SBC management while maintaining carrier-grade calling quality.
CallTower's GCC High Direct Routing solution provides PSTN connectivity for Microsoft Teams GCC High tenants — the Microsoft cloud environment required for US federal agencies, defense contractors, and organizations handling Controlled Unclassified Information (CUI) under ITAR, DFARS, or CMMC compliance mandates. CallTower is among the few providers with the certifications to deliver voice services in the GCC High environment.
CT Cloud UC is CallTower's proprietary unified communications platform — offering cloud business phone, auto-attendant, call routing, voicemail, conferencing, and collaboration tools as an alternative to Microsoft Teams or Cisco Webex. CT Cloud UC is designed for organizations that want a managed UCaaS solution without committing to the Microsoft or Cisco ecosystem.