It actually depends on your phone handset. Try reading the instructions manual??
First dial to check your ballance by your service provider number.like that>> *121# >>options>>call>>calling *121#....then cut the call and go to dialled numbers and you will find your last deleted number.got it?remember!!when you call *121# if it request then you can not find your deleted number!
A real telephone number is a telephone number that is live and connects to a landline or mobile device. There are different telephone numbers available that people don't recognise or insider not correct, this relates especially to non geographic numbers such as numbers like 0870, 0844 or when you need to dial the full area dialling code (STD) although the number should not need to be dialled in full. There are also false made up numbers such as on television shows when a real live telephone number cannot be displayed for obvious reasons.
France does not have area codes - they have ten digit phone numbers that are dialled in full. Numbers starting '02' are normally in north west France.
call log is a list of dialled nubers & list of received call numbers their date time etc...
There is no known system for finding prime numbers.
Dial the full number - including the area code.
Finding the difference between two numbers involves rationalising them
Finding those numbers which divide exactly (with no remainder) into all of the two or more numbers.
Country code +43 is Austria. Although mobile numbers begin with +43 6, so do some landline numbers.
All emergency numbers is 911 either by cell or landline.
Subtracting two numbers is finding their difference.
You can *69 like on a landline if your provider offers that option. Try it and see.