HTC RHOD400 Manuel D’Utilisation

There are several user options available for GSM operation under your device’s Phone settings. All these 
options require that your device be in Global or GSM-only mode and in a GSM roaming coverage area. 
(See 

 for a list of countries where international GSM coverage is available, and see 

1.

Slide to the Settings tab, and then tap 

 tab.

2.

Tap the service you want to configure and then tap 

.

3.

Choose your desired options, and then tap 

.

The following are some of the GSM services that you can configure. 

1.

Slide to the Settings tab, and then tap 

 tab.

2.

Tap 

 and then tap 

.

3.

Under 

 and 

, choose when you want to block phone calls.

4.

Tap 

.

GSM Services

Usage

Call Barring

Allows you to block certain types of incoming and outgoing calls on your 
device. This would be useful, for example if you allowed someone to use 
your device for a short period of time. (See “Using Call Barring (GSM)” 
below for details.)

Caller ID

Allows you to set caller ID options. (See “Caller ID” on page 204 for details.)

Call Waiting

Allows you to enable or disable call waiting. (See “Call Waiting” on page 
204 for details.)

Call Forwarding

Allows you to divert incoming calls to another specified phone number.

Voice Mail and Text 
Messages

Shows the text messages service center phone number and your voicemail 
number for accessing voicemail messages when you are roaming on GSM 
networks. (See “Voicemail and Text Messages” on page 204 for details.)

Location Setting

Allows the GSM network to detect your current location via your device’s 
built-in GPS chip. This is especially useful in emergencies.

TTY Mode

Allows the use of a TTY (teletypewriter) with the phone for users who are 
visually or hearing impaired. The available modes are the same as in CDMA. 
See “Phone Services” on page 74 for details.

Time Synchronization

Allows you to choose whether to synchronize the time on your device with 
the GSM network.