Help with setup with an ip2ip outbound voip route

Hello,

I’m seeking help with setting up an IP-to-IP outbound route on my Asterisk 22 server. I know the provider is using VOS3000 as their softswitch, and they have already whitelisted my server’s IP address. However, I’m still a bit confused about how to properly configure it.

I know that similar routes have been successfully used with Vicidial setups in the past.

Sorry if this seems like a basic question, but everything I’ve tried so far hasn’t worked.

This is all the information my provider has gave me:

xx.xx.xxx.xx

USA CLI
PREFIX 999