The invention provides a method of retransmitting a speech packet. In one
embodiment, the method includes receiving (S702) at a transmitting device
(140) a first negative acknowledgement (NACK) from a receiving device
(120). The NAK indicates a corrupted first speech packet transmission.
The transmitting device then retrieves (S706) a first speech packet
associated with the first NACK and compresses (S714-S720) the speech
packet to form a replacement speech packet. Next, a current segment of
speech is encoded (S808) to form a current speech packet and current
speech packet is combined with the replacements speech packet. The
combined speech packet is then transmitted (S814) to the receiving
device.