Huawei U8100 User Guide - Manual (Page 156)

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Managing Your Mobile Phone
Switching on Always-on Mobile Data
If you have not selected Enable always-on mobile data, after
your screen is locked for 30 minutes, your mobile phone will
automatically stop all data services (except MMS). For example,
your mobile phone will not check new emails or synchronize
data in the background. The mobile phone will automatically
enable data services only after you have waken up your screen.
On the Settings screen, touch Wireless & networks > Mobile
networks. Select Enable always-on mobile data to enable this
function. By default, this function is enabled.
Setting Text-to-Speech
Use the Text-to-Speech settings to configure the Android text-
to-speech synthesizer, for applications that can take advantage
of it.
Installing Voice Data
1. On the Settings screen, touch Text-to-speech > Install
voice data.