What's Wrong With the ILPTO's Telephone System?

Just tried calling an examiner at the ILPTO from a cell phone, and the call was terminated without any rings. 

So I tried again.  Same thing. 

So I tried another number there.  Same thing. 

So I tried calling from a land line.  Got a busy signal. 

So I tried another number.  Busy signal. 

And another number, and another number, and another one, including the general line.  Busy signal, busy signal, busy signal.

There's nothing on the ILPTO's site about the phone lines being down today.

Anyone know why it's impossible to get through to the ILPTO right now?

Pro tip: if you're a pro se, non-corporate inventor who is still allowed to file by fax, the fax numbers beginning 02-646 (rather than the usual 02-565 for numbers at the ILPTO) work.