Playing around with WSS support:
if (nat_uac_test(64)) {
force_rport();
......
if (!add_contact_alias()) {
xinfo("Error aliasing contact <$ct>\n");
sl_send_reply("400", "Bad Request");
exit;
}
set_contact_alias() throws this error on ACK without Contact,
add_contact_alias() doesn't (and thats OK). Is this the expected behavior?