ATT International Day Pass - Tips and things not obvious...

Disclaimer: This info comes directly from the ATT customer service rep. I don't actually know it's true from first-hand experience.

1) ** Don’t make calls over WiFi when using international **Use a regular voice voice call. Else it’s possible you could be billed differently. (??)

Action: TURN OFF WIFI CALLING BEFORE TRAVELING INTERNATIONALLY

2) This is on the pop-up "fine print", but good to know

a) When my iPad uses international cellular data
If iPad is already added to ATT International Day Pass,
and IF I have already used my phone's International Day Pass in a 24 hour period (hence, already incurring the $10 / day fee)
Then, the iPad's International Day Pass fee for that day would be $5 / day.

b) The most # of ATT International Day Pass charges to any active line will be 10 per month.
So, maximum per line cost for ATT International Day Pass = 10 days * $10 / day = $100
After 10 days of charges in 1 month, the remaining days are free for each active line.

Conclusion: When possible, Try to begin and end international travel all within 1 billing cycle.

c) I have an unlimited data US-based ATT plan. Therefore, I will get unlimited data when I'm in Dubai.