Here is tutorial for Nokia Calling voicemail & Home dialing :

Calling voicemail
Number 1 is generally reserved for your voicemail. Press and hold this button on the Phone dialer keypad to call voicemail and retrieve your voicemail messages.
Making calls from received messages and calendar reminders
While you are viewing a text or email message, you can directly call the sender of the message if the sender is a stored contact on your phone. You can also call a phone number that is contained in the body of the message. For more information about calling from received text messages, see “Messages” in Chapter 3 and “Directly Making Calls from Text Messages” in Chapter 7. For more information about calling from received email, see “Mail” in Chapter 3 and “Directly making calls from email messages” in Chapter 7.
You can also directly make calls from meeting request email and calendar reminders. See “Making a Call from a Meeting Request or Reminder” in Chapter 8 for details

Home dialing
Home dialing is a feature which helps you easily dial a phone number in your home country while you are roaming internationally.
To make a call using home dialing
Your phone is able to recognize your home country information from your SIM card and can automatically prepend your country code to the phone number when you place calls to your home country while roaming.
1. Simply enter the local phone number in your country without the plus (+) sign and leading zero, and then tap Talk.
Notes • If you enter a leading zero, it will be removed automatically.
• If you enter a plus (+) sign before the phone number, your phone will just dial normally using plus code dialing

2. The Home Dialing screen then opens and displays the phone number already prepended with your home country code.
Tap Yes, use number above to dial the displayed number.
To change the prepended code to another country, tap the country selection box and choose the country that you want. The displayed number now changes with the code of your selected country prepended. Tap Yes, use number above to dial the displayed number.
To turn off home dialing
If you prefer to use direct dialing (that is, manually entering and dialing complete numbers) and not home dialing, you can turn the home dialing feature off.
1. Press the HOME button to return to the Home screen.
2. On the Home screen, slide to the Settings tab and then tap Menu > All Settings.
3 . Tap Personal > Phone.
4 . At the bottom of the screen, scroll to the right until you see the Advanced tab.
5 . Tap the Advanced tab and then clear this check box: Add home country prefix to phone numbers when roaming internationally.
6 . Tap OK.

Photos
Capture images and record video clips
Your device supports an image capture
resolution of 1600×1200 pixels.
Camera mode
Use the still image function
Select Menu > Photos > Camera.
Zoom in or out
Scroll up or down.
Capture an image
Select Capture.
Set the preview mode and time
Select Options > Settings > Photo
preview time.
Activate the self-timer
Select Options and the desired option.
Video mode
Use the video function
Select Menu > Photos > Video camera.
Start recording a video clip
Select Record.
Switch between camera and video mode
In camera or video mode, scroll left or
right.
View your images and video clips
View your images
Select Menu > Photos > My photos.
Watch your video clips
Select Menu > Photos > My videos.

Here is Notifications and  Start Screen on Nokia Device :

Notifications

When you tap any of the status icons in the title bar, the Notifications screen opens and displays the remaining battery status, call duration of an ongoing phone call, as well as network connection status, such as Wi-Fi (if your phone is connected to a Wi-Fi network), data connection usage (if your data connection is on), and other types of connections. This screen also shows all your pending notifications including missed calls, new SMS/MMS messages, and more. Tap a status icon or item on the Notifications screen to open the related screen.
To close the Notifications screen, tap Close or press the BACK button on your phone.

Start Screen
The Start screen gives you one-touch access to the programs and settings of your phone. To open the Start screen, tap Start ( ) at the top left corner of the screen, or press the START button ( ).
On the Start screen:
Swipe your finger up or down to scroll through the screen.
Tap the Today icon to return to the Home screen. See “Home” in Chapter 3 for details.
Tap an icon to open the corresponding program or open a folder containing more programs.
Tap the Settings icon to access the settings of your phone.
Tap Lock at the bottom-left corner of the Start screen to lock your phone. See “Lock Screen” for details.
Press the START button

Moving an icon to the top of the Start screen
You can move often used icons to the top of the Start screen for easy access.
1. Press and hold the icon that you want to move.
2. Tap Move to Top.
The icon is moved to the top of the Start screen.
To return an icon to its original location, press and hold the icon and then tap Move Down.