This tutorial shows you how to turn on and enable the RMS feature. Overall it's a simple process that only takes a few moments. You will need to have either a host that provides it as part of your hosting plan. A VPS or Dedicated server with root access to install it yourself, or you can use a 3rd party provider.

The RMS settings and configuration in Dolphin 7.1 is pretty much the same process found in previous versions.

You simply login to your Dolphin Administration Dashboard (backend) and go to:
Modules
-Flash Apps

Then, find and click on the "Settings" icon link on the top right side of the screen.





A window will open up and you simply enter the details that your host or RMS provider gives you. It looks like this:





To turn on and enable RMS you need to check the box "Use RMS".
The "RMS Address" will be an ip address that your provider gives you.
The default RMS Port is 1935
The default RMS HTTP Port is 5080
Click Save
And you are done.


Unless your provider has changed the ports the only thing you usually need to enter is an ip address and check the box that says enable RMS.

It would look something like this:





Some hosts and providers may use different ports, but most of them tend to use the standard defaults. If they happen to do so just enter the port numbers along with the ip address they provide you with and save the changes.

As you can see this process is really simple to enable in the Dolphin 7.1 Administration.

Installing RMS on your own VPS or Dedicated Server isn't extremely difficult to do, but if you don't know too much about servers and administration you might need to hire someone to install it for you.


Additional:
Check out the list of Dolphin Hosting providers. Some do include RMS as part of the hosting package/plan.
Dolphin Hosting Providers

Here are some stand-alone 3rd party providers if you already have hosting.
Dolphin RMS Providers

To install your own on a VPS or Dedicated Server you can check out this article over at Boonex for complete instructions:
Media Server (RMS) Installation Guide


Note:
RMS isn't required to use Dolphin, but if you want to use the audio / video features associated with chat and IM, etc. you will need it.