Celtius provides mobile communications solutions for operators, handset vendors, and other enterprises. Solutions range from end-to-end solutions, where Celtius supplies both clients and servers, to providing an individual element such as mobile client, server or protocol library.

Our core business areas are Push-to-talk (PoC), Presence, Mobile Instant Messaging and Multimedia Messaging Services (MMS).  We also offer solutions for e.g. IMS applications and XML Document Management (XDM).

Celtius carrier-grade servers enable mobile operators to provide scalable and efficient services with high availability. Enterprises may also host Celtius servers themselves for achieving high communication privacy, seamless integration with their existing IT systems, or cost advantages.

Celtius mobile clients are communications software applications for handsets and computers. 

Celtius protocol SDKs enable ICT companies and value added service providers to build software applications complying with standard communication protocol interfaces. Some examples are customer built testing and monitoring solutions, communication proxies and gateways for mobile operators, as well as embedded software for mobile handsets.