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Changing Human Interactions

Wallace Cloud Services Powered by Kerauno

Kerauno is changing human interactions via leading SaaS business communication solutions. Kerauno is breaking down barriers by designing powerfully intuitive capabilities to help businesses get the most out of every interaction. With increased productivity, deeper engagements and an optimized business process, Kerauno’s solutions will improve the way people interact like never before.

One Comprehensive Business Comms Suite

Integrating all the UCaaS and CCaaS essential features you’d expect from a best-in-class cloud solution, with more advanced functionality like SMS text, call recording, and call center

One Simple Price

Kerauno UCaaS offers service plans for the most basic business phone service to comprehensive plans including voice, collaboration, and contact center

One Powerfully Intuitive Interface

An intuitive user experience, so your employees and customers get the most value and performance out of your communications


  • Kerauno UCaas

    Kerauno UCaas

    Kerauno UCaaS is redefining the Unified experience by delivering a more complete suite of leading cloud-based communication and collaboration services, all fully integrated to deliver a powerfully intuitive experience. Businesses can now get the most out of their communications through a truly unified suite of capabilities—all for one unified price.

  • Kerauno Launch

    Kerauno Launch

    Kerauno Launch sparks deeper, more direct engagements. Kerauno Launch text engagement enables real-time, two-way, mass texting capabilities for direct communication with customers, employees, fans or anyone else an organization interacts with.


Enrich Collaboration, Improve Productivity

Yealink T4S series IP Phones

Yealink’s T4S series is the upgraded IP phone line of Yealink’s former T4 series. Designed for today’s busy executives and managers, the T4S series features an elegant appearance, Optima high definition audio quality and a remarkable phone experience. Integrating cutting-edge features like Wi-Fi and Bluetooth connectivity, the T4S series enriches business users’ daily collaboration. It also protects business users’ investment with its effortless deployment and broad interoperability with UC platforms and IP PBX systems.

Optima HD Audio

With Yealink’s Optima HD audio technologies, industry-leading acoustic clarity and newly-added support for Opus* to its broad audio codec list, the Yealink T4S guarantees a lifelike collaboration experience.

* By supporting Opus, Yealink T4S series delivers better audio quality in both high-bandwidth and poor network conditions, comparing to other wideband or narrowband codecs.

Remarkable User Experience

The Yealink T4S series delivers excellent stability and performance with its latest advanced components. The phones feature an optimized interface for a smartphone-like user experience. Its rich one-touch soft keys allow for customization, bringing additional convenience and increasing productivity.

Additional Convenience and Flexibility

In addition to the T46S and the T48S, the new T41S and T42S are equipped with a built-in USB port, meaning the entire T4S series supports extended functions such as USB call recording, Bluetooth and Wi-Fi connectivity for more flexibility and functionalities.

Effortless Configuration and Upgrade

The Yealink T4S supports efficient provision and effortless mass deployment with Yealink’s free Redirection and Provisioning Service (RPS). Furthermore, the T4S features a unified firmware and an auto-p template that apply to all phone models (T41S, T42S, T46S and T48S), saving even more time and IT costs for businesses.

Our Products:

  • SIP - T48S

    SIP - T48S

    The SIP-T48S IP Phone is a dynamic business communications solution for executives and professionals. This phone offers a large touch screen that makes switching between pages and applications swift, easy and convenient. The SIP-T48S is also with Yealink’s Optima HD Voice technology and wideband codec of Opus for unparalleled audio clarity.

  • SIP - T46S

    SIP - T46S

    The SIP-T46S IP Phone is the ultimate communications tool for busy executives and professionals. In addition to offering better overall performance than the T46G, this device has a faster interface with a rich, high-resolution TFT color display. Built with Yealink Optima HD technology and wideband codec of Opus, this device enables crystal clear communications.

  • SIP - T42S

    SIP - T42S

    The SIP-T42S IP phone is a dynamic business communications tool for superior voice communications and extended functionality. It has a faster, more responsive interface than the T42G and offers better overall performance. The SIP-T42S is a 12-line IP Phone with multiple programmable keys for enhancing productivity.

  • SIP - T41S

    SIP - T41S

    The SIP-T41S is a feature-rich business tool for superior communications and extended functionality. It offers a faster,more-responsive interface than the T41P and several performance-enhancing functions. It’s a six-line IP phone that comes with built-in programmable keys to enhance productivity.

Our Clients