}
SIPServerTransaction st = sipStack
.getRetransmissionAlertTransaction(dialogId);
if (st != null && st.isRetransmissionAlertEnabled()) {
st.disableRetransmissionAlerts();
}
// Issue 319 : https://jain-sip.dev.java.net/issues/show_bug.cgi?id=319
// remove the pending ack to stop the transaction timer for transaction
// where the stack replied with a final error response.