here is the scenario when I make a call there is no speaker option, and even in handset cannot hear the party calling? ringer and other sounds working effect those.
The speaker phone option is your O/P key. Your ring tones not working might be the profile setting your on. Press your profile on the home screen, scroll to the bottom, click on advanced, highlight the profile you are on, press the menu button, select edit, look at your phone settings.