Systems and methods of managing and diagnosing enterprise telephonic devices are disclosed. A provisioning request can be received from an enterprise telephonic device. The provisioning request can include a domain name system lookup request. An enterprise network address of a device management server can be provided to the enterprise telephonic device. A voice data link can be established with the enterprise telephonic device so as to permit the enterprise telephonic device to communicate over a data network with endpoint telephonic devices. The device management server can periodically receive heartbeat data from the enterprise telephonic device. The heartbeat can be indicative of a status of at least one functionality of the enterprise telephonic device. The enterprise telephonic device can provide diagnostic logs when requested by the device management server. In addition, the enterprise telephonic device can be configured to periodically request software updates.