K-12 Voice Guide (aka Trunking Guide) The federal E-rate program no longer supports voice–related services, putting a huge strain on K-12 budgets. With this change, K-12 leaders are forced to find more cost-effective solutions that meet their critical voice communications needs. Free registration required to view this resource. Register today and receive free access to all our news and resources. Register now. Already a member? Log in Username: Password:  Lost Password? Sponsored by: