Area code
        *By inserting your area code, you will only have to insert the phone number you would like to call when calling a fixed number.
*What is my Area code?
Example:
+49 211 123456
49         = country code
211       = area code for DÜsseldorf
123456 = the phone number you would like to call
The area code is the code for your current location.
*You can enable this feature by opening the options screen in your client:
- Tools > Options 
- Go to the call settings tab   
- Enter you local area code:   
ADVANTAGE FOR YOU:
After you have done this, you will only have to insert the fixed phone number you would like to call: 123456 in this case.