Need help with configuring Ringcentral SIP trunk (outbound proxy on port 5090)

I’m new to the Asterisk world, hopefully this will be easy for someone to explain. I’ve read every forum on here, and google abou this matter and still can’t get it right. Here are the the SIP details.

SIP Domain

Outbound Proxy
User Name


Authorization ID

(Auth ID and Password are the same)

Basically, what I need is to use my Ringcentral SIP on my server so I can have unlimited out bound calls running simultaneously on my agents FreePBX extensions. This works while putting the SIP details directly into Eyebeam. the only problem with that is, I can not route my incoming calls properly.