It is an application that can be set individually the ring volume for each phone number.
Telephone number is entered directly or selected from contacts, and set the ringer volume and options of when there is an incoming call from a registered phone number.
Telephone number can be multiple registration, setting of once registered phone numbers can be ON / OFF from the app.
* It is gradually increased over a period of 10 seconds to set the volume.
* It sounds a ringtone in mute or silent mode.
* Forced to vibration.
* Please refer to the re-registration since the equal app to modify the phone number in the contact will not be reflected.