1. A method for reconstructing an erased speech frame, comprising: receiving a second speech frame from a buffer, wherein the index position of the second speech frame is greater than the index position of the erased speech frame; determining which type of packet loss concealment (PLC) method to use based on one or both of the second speech frame and a third speech frame, wherein the index position of the third speech frame is less than the index position of the erased speech frame; and reconstructing the erased speech frame from one or both of the second speech frame and the third speech frame.