Blackberry phones score’s big when it comes to its speaker phone. It’s loud, crisp and clear. So people who are addicted to talking in speaker phone while on conversation can’t stop that. But what many of the users don’t know is Blackberry having a built in shortcut key for switching on to speaker phone while you are on conversation. The normal ways to switch to speaker phone while on conversation is by pressing the trackball or the Blackberry button. Then we need to select the speaker phone.
But with the shortcut key you switch in to speaker phone in less than second. You need to press $ (currency symbol) as shown in above picture the key just after M key on the keypad.