The erased speech frame is reconstructed from one or both of the second speech frame and the third speech frame.

The first speech frame and the at least a part of the encoded version of the second speech frame are transmitted.

The index position of the third speech frame is less than the index position of the erased speech frame.

The index position of the second speech frame is greater than the index position of the erased speech frame.

A determination is made as to whether or not a second speech frame is a critical speech frame based on the information within the second speech frame and one or more adjacent speech frames.

At least a part of an encoded version of the second speech frame is created according to a selected forward error correction (FEC) mode if the second speech frame is a critical speech frame.

A first speech frame to be encoded is selected.

A second speech frame is received from a buffer.

The type of packet loss concealment (PLC) method to use is determined based on one or both of the second speech frame and a third speech frame.

Each speech frame may be associated with a different user.

A method for reconstructing an erased speech frame is described.

A speech frame may be analyzed and provide a set of parameters which may be transmitted to a remote location where a synthesizer may accurately reproduce the speech frame.

A method for preventing the loss of information within a speech frame is described.

The transmitter additionally includes a speech encoder for encoding speech packets each including a speech header and a payload comprising a speech frame.

The interpolation used to obtain the LPC parameters for the current speech frame can already be executed at the begining of the current data frame.