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Step 1
Download Yahoo! Messenger version 7.5 or higher and install, following prompts.
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Step 2
Open Yahoo! Messenger. Sign up for a new account or sign in to your existing account.
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Step 3
Select the "Phone Out" option. This will open your browser and take you to Yahoo! Voice account.
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Step 4
Select the amount of credit you want to purchase. Press the "Buy Prepaid Credit" button.
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Step 5
Choose payment option and pay for service.
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Step 6
Return to Yahoo! Messenger. Search the tool bar for the "Actions" option. Scroll down to "Call Setup" and follow the "Yahoo! Call Setup Assistant" prompts.
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Step 7
Check your prepaid balance to see if you have enough credit to make phone calls.
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Step 8
Type in the phone number you want to call. Add a "+" in front of the country code for international calls. Otherwise, just enter the number one, followed by the area code and phone number for all United States phone numbers.








