Dedicaded server- Hosting

It's necessary to have dedicaded server before use Dolphing software? What about the RMS Server?

No it is not necessary. What is necessary is making sure the host is compatiable with dolphin. Lists of hosts that are you can find here. http://www.boonex.com/hosting/

Some of them such as terabyte-hosting.com the one i use, also offer ray media services.

Great. Somebody say that Boonex default ray server is too busy it's for what it's necessary to get our own. it's true that without our own ray server Ray widgets couldn't work very well such as chat video messenger and so one??

Thats correct. The free boonex servers will most likely not work.

If you use terabyte hosting as i mentioned above, they have ray services available with the hosting account.