Panasonic Mobile Communications manufactures mobile phone handsets and related equipment. The SmartPhone platform is a feature-rich OS and interface for cellular phone handsets. MIPI specifications provide interface solutions for mobile handsets. IM is also starting to replace text messaging on multimedia mobile handsets. Products manufactured include circuit boards and cellular phone handsets. GSMA defined a platform for the deployment of GSMA NFC Standards within mobile handsets. The company would also form the Vertu division, creating luxury mobile handsets. Also in 2009 MTS started marketing MTS-branded mobile handsets. Calls were made via an operator using handsets identical to ordinary phone handsets. Such battery-backed devices typically are designed for use with analog handsets. Headsets can have ergonomic benefits over traditional telephone handsets. Symbian OS used in Nokia S60 handsets and Sony Ericsson UIQ handsets uses UCS-2. On 28 September 2007, the video was exclusively available to watch on 3G mobile handsets. Andreas focused on gaming handsets and affordable wireless headphones including Sennheiser PC350. Demand for handsets fell and users began shunning SMS messaging.