Step 1: Create an AWS Account [One time]
To use ElastiCache, you need an AWS account. If you don't already have one, you'll be prompted to create one when you sign up. You're not charged for any AWS services that you sign up for unless you use them.
To create an AWS account
Open http://aws.amazon.com/, and then choose Create an AWS Account.
Follow the online instructions.
Part of the sign-up procedure involves receiving a phone call and entering a PIN using the phone keypad.