How an experimental physicist lives
Dec 15, 2014
The radio frequencies used in US for cellphone communication are different from
those in China and Europe. A cellphone in China or Europe cannot be used in US
and vice versa, unless it supports multi frequencies.
Carriers and dealers
A carrier is a company who provides you cellphone communication service. Its
service may be provided through dealers. Page Plus is a carrier providing
cheap and flexible service.
A set of service is called a plan. There are roughly three types of plans:
- contract. You sign a contract with a carrier, paying fixed amount of money
monthly for 2 or 3 years. Normally one can get newest cellphone models for
free. But the monthly payment is rather high.
- prepaid. There are two sub categories:
- You pay fixed amount of money monthly.
- pay-as-you-go. You pay certain amount of money and the cost of each call is
subtracted from it each time you make a call.
- postpaid. You pay what you spent at the end of a certain period. You need
some credit to choose this plan.
Pay-as-you-go is the cheapest if you don’t need the newest phones.