CHICAGO — Bank One said has replaced an Internet banking platform from the defunct Integrion Financial Network with a package from Corillian Corp. of Portland, Ore.

The move, whose completion was announced Thursday, lets Bank One’s more than 700,000 customers bank online with Corillian’s Voyager Internet operating platform. Voyager provides account information, bill payment and presentment capabilities, and customized sorting and tracking options.

Bank One became one of three primary bank owners of Integrion, along with Bank of America Corp. and Washington Mutual Inc., in 1999, after about a dozen banking companies had bailed out of the consortium.

Last March, Integrion’s board of directors decided to dissolve the consortium entirely and began transferring management of its Interactive Financial Services software to its remaining three bank owners. Last May, Bank One became the first of the three primary owners to announce that it would abandon the system.

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