how to operate the IWO 10 ringtone and vibration for message alert

this ringtone and vibration is for message alert only, it doesn't work for phone call,
how to operate the IWO 10 ringtone and vibration for message alert
how to operate the IWO 10 ringtone and vibration for message alert
how to operate the IWO 10 ringtone and vibration for message alert

iwo 10 phone call,iwo 10,iwo 10 alert,IWO 10 vibration,iwo 10 ringtone,