FreePBX and Covad sip trunks...quick question

Anyone have any issues getting a Covad sip trunk working with FreePBX? I have an install in the pipeline and have been given two carrier options. Covad and CBeyond. Covad pricing is a little better. Just wanted to make sure I will not have any setup issues.

Thanks in advance.

they are both pretty simple. i can’t remember on covad, but cbeyond usually likes to manage the firewall/router (but will reluctantly set it to pass through mode if you ask).