A method of tuning a hearing device includes sending a test signal to a model of a hearing device that may be remote from the actual hearing device being tuned. The test signal is encoded by the model and sent to the hearing device being tuned. The user of that hearing device sends a response signal based at least in part on the encoded test signal. This response is received and compared to the original test signal. Thereafter, an operational parameter is sent to the hearing device based on the comparison.

An expandable or all-in-one telephone system is designed for seniors suffering from Alzheimer's and other forms of dementia as well as other cognitively challenged individuals. The features and settings are managed by their caregivers through a web browser or a smartphone application. This phone system provides caregivers with peace of mind and care-receivers with an easy-to-use safe system customized to fit their individual abilities and adaptable as their needs change. Accordingly, the system may help seniors retain dignity and independence, while reducing daily stress points for caregivers.