State lawmakers are trying to keep jobs in Connecticut with a proposed law regulating telephone customer service centers.

Legislation would require call center employees to identify to callers where they work and transfer customers to centers in Connecticut when possible.

When purchasing services, the state also would give preference to companies with a high percentage of calls directed to centers in Connecticut.

Sen. Gary LeBeau, an East Hartford Democrat and a sponsor of the bill, says it would preserve jobs in Connecticut.

AT&T Inc. opposes the bill. It says the legislature should try to attract investment and boost jobs rather than take steps it says might hurt Connecticut employers and workers.

The Energy and Technology Committee is scheduled to vote Tuesday whether to recommend the bill to the legislature.