You can set up a basic waiting room in 15 minutes or less. There is no software to install. 

Integrations may take longer depending on the method you choose. You should ideally allow 48 hours before a major on-sale, but if you use our JavaScript integration you can be up and running in 15 minutes, and using our DNS implementation you can be up and running securely within a few hours.

See: Getting started with CrowdHandler.