XL: "Rp 600 all you can eat"

Today XL formally launched the "Rp 0,00000...1" campaign (link). There's a big change however - probably due to strong criticism; the long zero's is no longer mentioned. Instead the ad now says "lowest rate to all operators, guaranteed" and "Rp 600 sampai puasssss" (translation: all you can eat).

Probably this is to attack Fren "Rp 700" Promo.

Wait a moment... is it Rp 600 to all operators or only on-net? Of course you have to read the fine prints to understand what they really doing AND to find that they misled people.... again... :-)

Six hundred rupiah is for on-net (between XL subscribers), and only between 23:00 - 10:59 in Jabotabek. For other case, good luck... still pretty low, but they are different rates:

• basically they give free call after a certain seconds - depends on where you are and what time the call is made
  
• there's a positive thing: for Sumatera, NTT, Ambon, Papua, it is even lower -- free after 30 seconds (so practically Rp 300 all you can eat).
• NTT, Ambon and Papua even enjoy this free-after-30-sec longer: 19 hours, from 23:00 - 18:00 WIT (or 21:00 - 16:00 WIB), great!

The interesting part is the off-net tariff... the "free" part is only for the 3rd to 10th minute. So here it goes:

• 0 - 2 minute: Rp 25/sec
• 3 - 10 minute: free
• >10: Rp 10/sec

So costs for 1-, 2-, 3-, 10-, 11-, 12-minute call are respectively  (in IDR) 1500, 3000, 3000, 3000, 3600, 4200, ...
Confusing enough? "Tanpa Syarat dan Ketentuan" :-)

Secondly, I am wondering, whether this applies to my post-paid subscription? Probably not.