Customer Case Studies

Explore real-world examples of what’s possible when voice, collaboration, and AI come together under a trusted solutions partner.

Microsoft Teams

Financial Services Organization Streamlines SIP Migration

A Midwest financial services organization used CallTower’s CT Cloud SIP solution to support number porting, reduce disruption and prepare for a seamless migration to Microsoft Teams.

How Hiebing Marketing and Communications Improved Productivity with Microsoft Copilot and Teams Phone

See how the marketing and communications agency partnered with CallTower to replace legacy phone systems, consolidate Microsoft 365 licensing, and introduce AI-powered workflows through Microsoft Copilot, Copilot Studio and Teams Phone.

Government Agency Enables Microsoft 365 GCC High Voice

An undisclosed government agency worked with CallTower and TCI to voice-enable Microsoft 365 GCC High, supporting secure Teams audio conferencing, PSTN calling and compliance-focused collaboration for government environments

GCC High Voice with Microsoft Teams Direct Routing

A government cloud and Defense Industrial Base IT provider, partnered with CallTower to deliver Microsoft Teams voice, PSTN calling, and audio conferencing for GCC High organizations.

Franklin Sports Upgrades Teams Voice with Microsoft Direct Routing

Franklin Sports, a multi-location sporting goods brand, partnered with CallTower to replace legacy PBX systems with Microsoft Teams Direct Routing, reducing communication complexity, usage costs, and support burden.

CallTower Streamlines Microsoft Teams Communications

CallTower delivered Operator Connect, custom integrations and advanced analytics that improved client communications across nonprofit, manufacturing, education and financial sectors.

Pepper Construction Unifies Microsoft 365 Voice Communications

Pepper Construction adopted CallTower’s Microsoft Operator Connect to connect teams across Midwest offices, improve collaboration and reduce telecommunications costs.

KPFF Scales Microsoft Teams Calling Across Engineering Teams

KPFF, a multi-discipline engineering firm, partnered with CallTower to expand Microsoft Teams Calling across decentralized departments, improving mobility, billing visibility, admin control, and support for remote and hybrid work.

Healthcare Company Cuts Microsoft Teams Calling Costs

A healthcare services company switched to CallTower’s Calling Plans to reduce Microsoft Teams calling costs by 45%, streamline deployment and add premium Teams analytics for deeper reporting insights.

Husch Blackwell Streamlines Legal Communications with Microsoft Teams

Husch Blackwell, a law firm, partnered with CallTower to replace Cisco UCM with Microsoft Teams, reducing costs, supporting remote work, and improving billing accuracy.

Global Footwear Company Migrates to Microsoft Teams Operator Connect

A global retail/footwear company used CallTower’s SIP-first strategy to replace aging Cisco infrastructure, migrate 600+ call paths across six stores, and support a seamless cloud communications transition.

Sight & Sound Saves with Microsoft Teams Operator Connect

Sight & Sound Theatres moved from on-prem Cisco to CallTower Operator Connect for Microsoft Teams, saving more than $1K per month while improving mobility, operational efficiency and long-term scalability.

Operator Connect + Five9 Contact Center

Mid-Size Bank Improves Customer Service with Microsoft Teams Operator Connect

A mid-size banking company partnered with CallTower and Five9 to move from on-premises PBX to Microsoft Teams Operator Connect and an integrated cloud contact center, improving communications and customer engagement.

PING Golf Upgrades to Microsoft Teams Voice

PING Golf partnered with CallTower to implement a turnkey Microsoft Teams UCaaS and Five9 contact center solution, improving mobile flexibility, license control and support for its manufacturing workforce.

Webex by Cisco

City of Del Mar Achieves Superior Call Quality

A public sector organization moved to Webex Calling with CallTower Managed Voice Continuity to support resilient, high-quality cloud communications and reduce the risk of service disruption with CallTower.

Public University Migrates from Mitel to Webex Calling

A large public university used CallTower’s SIP-First migration strategy to move 25,000 DIDs from Mitel to Webex Calling with zero academic disruption, improved infrastructure control and greater hybrid work flexibility.

Global Beverage Company Moves to Webex Calling

A global beverage conglomerate partnered with CallTower to transition 9,000 users across 300 offices to Webex Calling, consolidating global telephony, reducing complexity, and supporting future cloud collaboration.

Genesys Cloud

Insurance Contact Center Migrates to Genesys Cloud

An insurance contact center partnered with CallTower to migrate from Genesys PureConnect to Genesys Cloud, supporting omnichannel service, tailored training, real-time reporting and a seamless transition with no operational disruption

EPCOR Transforms Utilities Contact Center with Genesys Cloud

EPCOR, a utilities provider, partnered with CallTower to migrate from Genesys PureConnect to Genesys Cloud, scaling from 80 to 400 agents while improving security, reporting, and AI-ready customer engagement.

CX Services

North American Utility Scales Contact Center CX

A utilities provider modernized its legacy contact center, scaling from 80 to nearly 400 agents while improving security, reporting and service continuity

Health Insurer Automates Claims Voice Tasks with AI

A national health insurance provider partnered with CallTower and Parloa to automate routine claims voice tasks, reducing agent workload, improving claimant experiences, and achieving a 71.4% task automation rate.

CallTower Case Studies
CallTower Case Studies

Customer Case Studies