アメリカの携帯電話プラン

Service provider T-mobile T-mobile Walmart
Plan name Simple Choice Plan 100-min plan? Walmart Family Mobile
初期費用 0? $10/回線 $25/回線
回線1 $50~ $30 $39.88
回線2 $30~ $30 $34.88
通話 無制限 100分 無制限
メール 無制限 無制限 無制限
データ通信 1GB~ (4G) 5GB (4G) 2.5GB (3G)
国際ローミング 無制限 (128kbps)

http://www.t-mobile.com/cell-phone-plans/family.html
http://prepaid-phones.t-mobile.com/prepaid-plans
http://www.walmart.com/cp/Family-Mobile/1076544
http://wellconnectedmom.com/blog/2013/08/02/walmarts-mobile-unlimited-plans-make-cents/
http://svgarakuta.blogspot.com/2013/12/t-mobile-simple-choice.html
http://www.reddit.com/r/iphone/comments/2h1qyy/

国際電話の受話

Incoming international calls cost the same as any other incoming call.

http://www.t-mobile.com/optional-services/international-calling.html

Is there an additional charge on this $30 plan to receive a call from outside the US?
I realize it will use the 100 minutes, but does T-Mo charge an extra fee to receive the call?
...
Nothing extra to receive, just your normal deduction from your 100 minutes.

http://slickdeals.net/f/3377172-t-mobile-com-walmart-prepaid-30-month-unlim-text-5gb-data-100-voice-mins-new-activation-only?page=504