Symbian has released the latest version of its smartphone operating system with support for new wireless technologies.
Symbian 9.3 offers native support for Wi-Fi wireless Lan connectivity, allowing mobile devices to connect quickly over the internet using wireless hotspots.
The upgrade also supports the UMA protocol, which lets users make and receive VoIP calls over Wi-Fi networks, and automatically transfers calls to a mobile cellular network when the phone moves out of range of the Wi-Fi network.
Symbian OS supports the HSDPA mobile access technology on mobile networks, as well as push-to-talk services, which allow users to speak to multiple people with a single call from a mobile.
Symbian said version 9.3 had an improved start-up time and responded faster to applications.
The upgrade also makes it easier for developers to remove features they may not want to include in lower-price phones.
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