Good questions,
I used it.
Straight from my phone to my J-friend.
From my J friend to me.
I was told it is the cheapest (on a phone) way to communicate for Jamaicans.
No extra charge for me.
I used it about 3-4 times everyday for 5-6 months.
Back and forth, photos, text and voice messages.
I hope others will chime in .
