Robert Salmon, vice president and general manager of Fidelity Investments' Salt Lake City Telephone Operations Center, will resign next month "to pursue other challenges," the company said.

Tom Lawrie, vice president for operations at the Salt Lake facility, will share Salmon's former responsibilities with other Fidelity executives and continue the day-to-day operations of the center, a spokeswoman said.The Salt Lake Center employs about 550 brokers handling calls 24-hours a day from Fidelity investors in 13 western states and also houses a walk-in discount brokerage.

"Bob has played a key role in the start-up of our Salt Lake City operation and has been instrumental in its continued success," Nita Kincaid, president of Fidelity Investor Information Services, said.

"In addition to opening the center, Bob firmly established Fidelity as a good corporate citizen by implementing a program of active support of worthwhile civic, cultural and community activities."