The Warpfall Transmitter accelerates your Titanfall substantially, using short-range jump technology.
— In-game description.
Warpfall Transmitter is a Tier 2 Pilot Kit that appears in Titanfall. With this kit, titan arrival takes approximately 3 seconds instead of standard 6, which makes emergency calling much easier. It also may be a viable tactics to drop a titan on top of enemy, because it will instantly kill him or at least force him to back off.