Reply With Message
In ios7 using an iPhone 5S when there is an incoming call the "Reply With Message" feature, introduced in ios6, no longer appears. What seems odd is that within Settings I am able to edit messages with which to reply, but I can't use the function. Has this function been removed (if so why is there still the ability to edit the messages?), is this another ios7 glitch, or do I need to activate deactivate or change another setting? Thanks.
iPhone 5s, iOS 7.0.3