A seat mounting rail for securing seats to a floor of a passenger aircraft is made of a seat securing upper section and a rail mounting lower section. The image pair includes an original image of the current frame and a disparity map of the same current frame. Subsequent callers forwarded to the subscriber’s voicemail box at the voicemail system receive an announcement that the called party is not presently accepting voicemail messages. The curvilinear container includes a tubular body having a curvilinear portion wherein the diameter of the tubular body varies along the length of the curvilinear portion.