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Method for migrating or altering a messaging system

  • US 6,208,717 B1
  • Filed: 02/23/1998
  • Issued: 03/27/2001
  • Est. Priority Date: 03/03/1997
  • Status: Expired due to Term
First Claim
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1. A method for changing or migrating a voice messaging system including an application and a plurality of user mailboxes, comprising the steps of:

  • (A) creating a new version of a mailbox for at least one user while keeping said new version of said mailbox in a same location as an old version of said mailbox, wherein said new version of said mailbox comprises a software upgrade; and

    (B) using said new version of said mailbox for a period of time before removing said old version of said mailbox;

    wherein the change or migration is effected such that there is substantially no system interruption.

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