Add ability to change Availability Status for individual and Queue from Desk Phone

When using actual desk phones with Ring Central, there needs to be a way to change your availability status for both as an individual and as a member of a call queue. Whether this is done via a softkey or a key combination such as *(number combination), it doesn't matter, it just needs to be something that is able to be accomplished. Currently, the only way to do this is to log into the app and toggle the availability status there.