Press Release

Unicoi Systems Releases Fusion Embedded™ SIP 5.2

Support for OPTION Server Authentication and Customized SIP Headers

SIP 5.2 press releaseATLANTA, GEORGIA – October 27, 2010 – Unicoi Systems (Unicoi) is proud to announce the release of Fusion Embedded SIP version 5.2. With this release, Fusion Embedded SIP provides support for the OPTION server authentication method, along with API updates to accommodate customized SIP headers.

“Providing developers with a more efficient way to build voice applications continues to be one of Unicoi’s primary objectives. Fusion Embedded SIP 5.2 is the latest manifestation of our commitment to VoIP developers,” said Greg Coonley, Unicoi’s Chief Executive Officer.

The code improvements to Fusion Embedded SIP 5.2 render a more adaptable development option.  The API supports custom headers, which enables a broader range of RFCs. Support for server authentication is included, via the OPTIONS request, which provides feedback on external SIP devices. This latest version of Unicoi’s SIP solution also uses smarter request routing to provide better connectivity to distributed SIP domains. Other code improvements include redundant code reductions resulting in a small overall footprint and improved maintainability.

About Unicoi

Unicoi Systems is a leading provider of VoIP and multimedia software and reference designs to embedded device developers and OEMs worldwide. More than 400 companies rely on Unicoi to power their solutions, including leading technology companies Motorola, Lockheed Martin, Honeywell, Sharp, Raytheon, Cisco Systems and Sony. For more information, visit, email, or call +1-678-208-2250.


Unicoi Systems
Jeremy Mason
Director of Marketing
+1-678-208-2250 x325

Phone: +1-678-208-2250 E-mail: