Yes. You can work with the phone company to give her only a restricted list of numbers she can call. Typically this might be 3 or 4 relatives and friends plus 911.
You can not have two devices having the same number, what you can do instead is transfer incoming calls to the landline to your mobile. In other words, when someone is calling your landline it will instead be redirected to your mobile device.
yes
AT&T Landline Phone Service Traditional landline phone service from AT&T with unlimited local & long distance calling plans, just local phone service, or loocal with cent per minute long distance calling plans.
The same as calling a standard landline telephone. Just key in the number you'll be calling.
A calling card is a small phone card like a credit card which is used for calling purposes. It can be used with a landline or a cell phone to pay for telephone services.
i have no clue try calling an airport and not asking strangers
No one would like many strangers calling them.
Not unless the number you're calling is a 'free-phone' number.
knife.
In general, you will always have a dial tone when you are calling from a landline phone, but never from a mobile phone.
Calling from Nepal is cheap Rs2 per min for internet calling place. Some £1 card gives 40 min in Nepal landline. I think this is the cheapest.
This website offers calling cards for sale. These are cards used to call foreign countries from a landline. You can order a card online from the website and pay with PayPal, or credit card.