HTC DIAM400 Cell Phone User Manual


 
Managing Your Device  135
Phone services
Your device can directly link to the mobile phone network, and enable you to access and change the settings 
of various phone services for your device. Contact your wireless service provider to find out about the 
availability of phone services for 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, then tap Get Settings.
4. Choose your desired options, then tap OK.
The following are some of the optional phone services that you may find on your device. For more 
information about customizing settings of phone services, see Help on 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.
Network Service Choose whether to restrict your device to phone calls from your home network only.
TTY Mode Allow the use of a TTY (teletypewriter) device with the device for users who are visually or 
hearing impaired.
Time Synchronization Choose whether or not to synchronize the time on your device with the mobile network.
Plus Code Dialing This allows easy dialing when making international calls. For more information, see "To 
customize plus code dialing".
To customize plus code dialing
You can customize how phone numbers that begin with a plus “+” sign will be dialed.
1. Tap Start > Settings > Personal tab > Phone > Services tab.
2. Select Plus Code Dialing, then tap Get Settings. The following screen then appears:
3. To place local and international calls from the United States, select Enable.
When you place calls, the “+” sign at the beginning of phone numbers that you dial will be replaced as 
follows:
When you enter a long distance phone number that starts with “+1”, the “+” will be removed and the 
rest of the number will be dialed. For example, if you entered +1 416 123 4567, the number to be 
dialed will be 14161234567.
When you enter an international phone number that starts with a “+” followed by a digit other 
than 1, the “+” will be replaced with the United States international dialing code, which is already 
set by default. For example, if you entered +58 212 123 4567, the number to be dialed will be 
011582121234567.
4. To place calls to the United States from another country, select Disable and change the International
dialing code to the one used by the country where you are in.
So when you dial a phone number that starts with “+” followed by any digit (0 - 9), the “+” will be 
replaced with the international dialing code of the country where you are in.
Tip If you modified the international dialing code, you can tap Reset to change it back to the default.