LockSpeed is a tweak released later this week in Cydia for our iDevices, it being developed by a Romanian, its functionality is to bring a menu with shortcuts to call your favorite contacts in the LockScreen. In the image above you can see the menu that allows the display of these shortcuts that can be quickly accessed for calling, a simple side swipe to the left displays the menu, touching an icon automatically calls the contact attached to the shortcut.
Fast access to your Favorites from your lock screen for speed calling. The tweak displays up to 9 contacts, with pictures, or initials if the contact doesn't have one and the order is the same from the one in the Favorites tab from the Phone app. Swipe left on the lockscreen and tap to call!
Jailbreak iOS 8.1 must be done in order to install this tweak, which is available for download for $2 in Cydia's BigBoss repo.
