Communications in the United States are developed. Most public telephones are pay phones. There are two ways to make public calls: coin-operated and calling cards.

The mobile phone charge in Los Angeles is $9.9, with a one-year subscription.

To use a pay phone, you must prepare coins first. Public or "pay" phones are common in the United States, and the specific calling methods are engraved on the machine. If you make a long distance call through a pay phone and are willing to pay by yourself (collect), you must prepare enough coins (25 cents, 10 cents, 5 cents) in advance.

For general local calls, you can dial the 10-digit telephone number including the area code, and make long-distance calls by adding "1" before the 10-digit telephone number.

The procedure for using a calling card is generally as follows: first dial the number starting with 1-800 or 1-888 on the calling card, enter the password (pen#) on the calling card according to the prompt, and then dial the phone number.

The "yellow pages" are always placed at the back of the phone book, and the phone book in larger cities is simply divided into two volumes. "Yellow Pages" lists the names, addresses and telephone numbers of units, organizations, enterprises, companies and service industries. , sorted by department category first, and then arranged in alphabetical order. Department categories are indexed. The "yellow pages" have a wide range of uses, especially when you want to find a unit in a special industry.

If you can't find the phone number you are looking for in the phone book, you can call the directory help published in front of the phone book. In most parts of the United States, the telephone number of the information desk is 4 1 1.

Telephone numbers in the United States are all ten digits, of which seven digits are the basic receiving numbers. There are three digits before these seven digits, which is the "area code". Every "region" has extensive jurisdiction, sometimes even the whole state. In some states, too many people in a "district" (usually in a metropolitan area) have telephones, so you should dial not only the seven-digit receiving number, but also the "area code".

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