A route plan consists of one or more trunks and it controls how we deliver calls to those trunks (known as inbound traffic). You can control your outbound traffic by changing how your configuration and equipment points to our trunks.
To update a route plan for SIP trunk service:
Control Center displays a list of all services assigned to the accounts under your enterprise ID. If you have more than ten services, you can view the rest of your services by clicking one of the blue linked Show numbers at the top of the list or you can click the blue down arrow at the bottom of the list to add ten services at a time to the view.