string RegistrationInfo(DN dn)
{
if (dn == null)
{
return("<NULL>");
}
return($"{DNListener.DNInfo(dn)}=Registrar\n[\n{string.Join("\n ", dn.GetRegistrarContactsEx().Select(x => $"ID/Hash={x.ID} - {x.Contact}"))}\n]");
}
string VoiceMailInfo(DN dn)
{
return($"{DNListener.DNInfo(dn)}=VMBOX({dn?.VoiceMailBox.New}/{dn?.VoiceMailBox.Total})");
}