CallTower

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About CallTower

A global leader in unified communications (UC), contact center, and collaboration solutions, CallTower delivers cutting-edge UCaaS and CCaaS offerings that drive efficiency and fuel digital transformation for businesses worldwide.

The Challenge

When enterprises first turned to Microsoft Teams and Cisco Webex to unify their communications, one capability remained frustratingly out of reach: integrated, enterprise-grade SMS. Teams lacked native SMS support, while Webex lacked the core features organizations needed for business messaging. CallTower's clients were looking for more: messaging that was secure, scalable, and fully embedded in their existing collaboration tools.

Without a robust messaging solution, CallTower risked losing ground to faster-moving competitors and falling short of rising customer expectations. The company needed more than just a stopgap — it required a branded, enterprise-ready messaging service that could launch at scale across both platforms

The Solution

To meet this growing demand, CallTower partnered with YakChat, an expert provider of secure, two-way SMS and MMS messaging for Microsoft Teams and Cisco Webex. YakChat stood out not only for its technical depth, but also for its unique ability to offer a fully white-labeled solution, custom-tailored to CallTower's branding.

''Importantly, [YakChat] was a company we were able to work with from the very beginning,' says CallTower's Senior Vice President of Software and Product Development, Doug Larsen. ''The YakChat team is very accommodating to all our different requests [...] and continues to integrate them into the product.''

By white-labeling YakChat's messaging technology and launching it as CT Text, CallTower rapidly extended its UC portfolio with a powerful, fully branded messaging service that mirrored the quality of its voice offerings. CT Text delivered the functionality CallTower's clients demanded while reinforcing the company's position as a leader in unified communications.

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Key Features of CT Text

CT Text enables clients to message from desktop or mobile, receive real-time alerts, and securely share MFA codes — all while keeping communication inside the collaboration platforms they already use.

It delivers all the functionality modern businesses expect from a messaging solution, including:

Personal and shared inboxes
Multimedia messaging, including MMS and group chat
Built-in contact management
Real-time message translation
Broadcast and scheduled messaging
Centralized conversation history — no external data sync or third-party storage required

With this integration, CallTower rapidly scaled its messaging capabilities across Microsoft Teams and Cisco Webex, transforming the customer experience while opening new opportunities for growth.

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The Impact

CT Text is now a core part of CallTower's offering, with 300+ accounts and 10,000+ users. Its listing in the Microsoft Teams App Store is evidence of its growing reach and strategic value. Driving growth and enhancing client communication, CT Text continues to differentiate CallTower in a competitive market.

Behind the scenes, the collaboration between the two companies is as strong today as it was when the partnership began nearly five years ago. ''From engineering to support to sales to product,'' says CallTower's VP of Product and Software Development, Doug Larsen, ''it's a really great partnership.''

Why It Matters

What began as a response to client demand has grown into a strategic alliance. Even as Microsoft introduces basic SMS in Teams, CT Text gives CallTower a powerful edge — with the advanced, enterprise-ready functionality clients truly need.

And that matters, because in a rapidly evolving communications landscape, the ability to offer integrated, secure, scalable messaging is no longer optional: it's a differentiator.

CT Text ensures CallTower doesn't just keep pace — but stands out as the smarter choice in a crowded market.

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