Line Service Line Service consists of several options for each telephone line in your department.
Some options apply to all telephone lines in a given group.
Calling Card A calling card is a credit card, issued by local or long-distance carriers, that allows calls to any number from any telephone. Calls are charged to the telephone number assigned to the card and appear on that number's UCLA telephone bill. Class of Service A telephone line, or directory number, provides dial tone. Class of Service determines the access privileges and dialing range assigned to a telephone line, and can help control telephone abuse. Calls can be restricted to campus only, local area, southern California, all California, the United States, or all North America.