SQL Server 2014 CAL

Hi Guys,

I'm planning to setup RDS and  SQL  server(2014 standard)

our application will runs on RDS box and database's will be on SQL box

As users will access the application on RDS remotely hence we are planning to apply RDS and windows CALS on RDS server

For SQL box we are planning SQL server license + cals

As sql functionality will only be accessed by RDS box through application hence i'm thinking that single device CAL for sql box will be sufficient

Could you please confirm if i'm correct or i'll needs to purchase any other license

Many Thanks,

Sandeep