A new Cydia tweak called TelOnNotification has just made it possible for iOS 5 users to dial any phone number directly from the notification center. The tweak basically provides a quick access to the Phone application by displaying the keypad inside the pulldown notification center menu. The tweak installs as a notification center widget and can be easily toggled on or off via the Notifications option within the native Settings application.
You can download TelOnNotification from Cydia via the BigBoss repo for free.
The tweak is only compatible iOS 5 as it relies on notification center. Once again, you need to jailbreak your iPhone first in order to install this tweak. To do so, simply read our easy tutorials on how to jailbreak your iPhone 4S using Absinthe or CLI, untethered on iOS 5.