if (bindings != null & !bindings.isEmpty()) {
Iterator it = bindings.values().iterator();
while (it.hasNext()) {
RegistrationBinding binding = (RegistrationBinding) it.next();
log.info("########## BINDINGS: " + binding);
ContactHeader header = binding.getContactHeader(
getAddressFactory(), getHeaderFactory());
log.info("########## CONTACT HEADER: " + header);
if (header == null) { // entry expired
continue; // see if there are any more contacts...