Dial Tone Restore of Exchange 2003 and Exchange 2007

Dial tone restore is really nice when you want to adopt Recover now and restore later method. it can be a good idea to use this method in conjunction with the Recovery Storage Group (RSG) feature, when faced with one or more corrupt Mailbox Stores.

Introduction

If you one day are faced with a relatively large corrupt Mailbox Store, restoring it can, depending on things such as backup hardware, backup application and network speed, be quite time consuming. Now the last thing you want to deal with in such a situation is frustrated users.

So how can you get your users to calm down and get back to work while you concentrate on getting the Mailbox Store back to life? There's one simple answer and that is, you can create a dial-tone database and thereby get message flow and mailbox access recovered almost instantly. By using a dial-tone database your users can start to receive and send mail again, they can even go check out old messages that existed in their mailbox on the Exchange server (if their Outlook client has been configured to use cached mode that is), bear in mind though they have to switch between Online and Offline mode when prompted with the Outlook 2003 Exchange Recovery Mode dialog box.

Using the dial-tone database restore method means that you, while restoring one or more corrupted Mailbox Stores from the most recent backup, have users connect to a new empty or blank Mailbox Store. The dial-tone restore method is by no means new; it's been used with previous versions of Exchange as well, but now that we have the Exchange Server 2003 and 2007 Recovery Storage Group (RSG) feature, the method becomes even more attractive when restoring Mailbox Stores within your Exchange messaging environment.

For complete detailed steps that how to do dial tone restore if you have MS-Exchange 2003 follow below 3 parts article:
http://www.msexchange.org/tutorials/Exchange-Dial-tone-Restore-Method-Part1.html

http://www.msexchange.org/tutorials/Exchange-Dial-tone-Restore-Method-Part2.html

http://www.msexchange.org/tutorials/Exchange-Dial-tone-Restore-Method-Part3.html


For Exchange 2007 Dial tone restore follow the below TechNet Article:
How to Perform a Dial Tone Recovery on an Exchange 2007 Server with a Failed Database:
http://technet.microsoft.com/en-us/library/bb310773.aspx