Compile data, compute fees and charges, and prepare invoices for billing purposes. Their duties include computing costs and calculating rates for goods, services, and shipment of goods; posting data; and keeping other relevant records. They involve use of computer or typewriter, calculator, and adding and bookkeeping machines.

Prepare and distribute bank statements to customers, answer inquiries, and reconcile discrepancies in records and accounts.

Locate and notify customers of delinquent accounts by mail, telephone, or personal visit to solicit payment. They receive payment, post amounts to customer's account and prepare statements to credit department. They initiate repossession proceedings or service disconnection. They keep records of collection and status of accounts.

Provide information by accessing alphabetical, geographical, or other directories. They assist customers with special billing requests, such as charges to a third party and credits or refunds for incorrectly dialed numbers or bad connections. They handle emergency calls and assist children or people with physical disabilities to make telephone calls.

Operate telephone business systems equipment or switchboards to relay incoming, outgoing, and interoffice calls. They supply information to callers and record messages.

Directly supervise and coordinate the activities of clerical and administrative support workers.

Solicit donations or orders for goods or services over the telephone.

Sell business goods or services, the selling of which requires a technical background equivalent to a baccalaureate degree in engineering.

Rent, buy, or sell property for clients. They perform duties, such as study property listings, interview prospective clients, accompany clients to property site, discuss conditions of sale, and draw up real estate contracts. Includes agents who represent buyer.

Operate real estate office, or work for commercial real estate firm, overseeing real estate transactions. Their other duties usually include selling real estate or renting properties and arranging loans.