A retirement services vendor says it is going to try to take a new approach to persuading employees who leave its 401(k) plans to buy its individual retirement accounts.

John Hancock, Boston, a unit of Manulife Financial Corp., Toronto, will be introducing the new 401(k) rollover program sometime after Sept. 30, the company says.

Hancock’s retirement income and rollover solutions unit will focus on promoting the value of investment continuity and making the process of rolling cash over into Hancock IRAs as simple as possible, Hancock says.

The new program will include a communications package, a licensed call center, and a Web site.