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Go to the "add user" menu under "Users / Extensions"
Click the link titled "I want to import changes or additions using a comma separated (.csv) file"
You will need a .csv (Comma Separated Values) file (see: Creating a CSV file)
Click "Browse..." and find the .csv file that was created in step 3.
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The first row is a header, which lists the fields available. The full list of fields are as follows (red fields must be filled in, with certain exceptions):
Extension
First Name
Last Name
Web Username
Password
Description
Email
IM
Mobile
Device MAC Address (Leaving this empty will create a voicemail-only extension. Keyword "virtual" will create a user assigned to a -virtual device-. See Import Rules.)
Use the "Export" or "Save As..." feature of your spreadsheet to create a .csv file.
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