Ingenious phones and accessories are manufactured by Yealink, the global leading producer of IP phones, and custom provisioned to our Managed Cloud-Hosted Office Communications (MCHOC) network. Each Ingenious User account includes our T2 Series Workstation Phone, which can optionally be upgraded to any phone that Ingenious offers, at a modest additional monthly cost. All of our phones and accessories are included in our Unlimited On-Site and Remote Administration, Support and Maintenance.