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> Phone Services

> Additional phone service options can be easily configured on your device.

> To access and change settings of phone services:

> 1. | On the Home screen, slide to the Settings tab and then tap All Settings.

> 2. | On the Personal tab, tap Phone > Services tab.

> 3. | Select the service you want to use, and then tap Get Settings.

> 4. | Choose your desired options, and then tap OK.

> The following are some of the phone services that you can configure for your device:

> Phone Services | Usage
> Location Setting | Allow the mobile phone network to detect your current location via your device’s built-in GPS chip. This is especially useful in times of emergency.
> Roaming | To better control roaming costs, you can set your device to roam only on certain networks. The Data Roam Guard also helps you to manage your roaming costs.
> TTY Mode | Allow the use of a TTY (teletypewriter) device with the smart device phone for users who are visually or hearing impaired. Choose one of the following modes, depending on the operation mode that is supported by the TTY device:

> | Full mode: Send and receive text during an ongoing call.

> | VCO mode: Voice Carry Over mode, which allows users to send voice and receive text during an ongoing call.

> | HCO mode: Hearing Carry Over mode, which allows users to send text and receive voice during an ongoing call.

> | Off: Disable TTY mode, and send and receive voice during an ongoing call.

> Time Synchronization | Allow the system time on your device to be synchronized with the time information of the mobile phone network.
> Plus Code Dialing | This allows easy dialing when making international calls.
> Roaming Alert | Enable sound alerts on your device so that you can be notified when your device enters or goes out of the network coverage area. By default, alert notification is disabled.

> For more information about customizing settings of phone services, see Help on your device.

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