Can I place no-charge phone call to a MOBILE number in Panama and in Jamaica from my phone while I am in Panama or Jamaica if I get an International Pass?

Sorry I thought you wanted to call Tmobile.  Calls to mobile lines to those destinations are 30¢ a minute.

Just to verify: If I am in-country (Panama) and call a mobile in the same country (Panama), do I pay 30cts/min despite my having an international pass?

Let me re-phrase: I have a US phone with a US plan. In addition, I purchased a 10-day International data plan. If I am in Panama during those 10 days, and call a mobile in the same country (Panama), is the call free or do I pay 30cts/min because I am calling a mobile number?

This link will let you choose a destination and gives you the calling rates.

https://www.t-mobile.com/cell-phone-plans/international-roaming-plans?icid=MGPO_TMO_C_TMOTRVLBNF_YH2YL1ASR9RCNU9PA29970

Sorry, I did go there but I cannot find the specific answer to my question, i.e. are calls to MOBILE phones covered under the free calling plan, or only calls to landline within the guest country?

Only land lines in those 2 countries. International calling is also plan dependant.

Hey @Frenchie, International rates and service can be pretty confusing. I am glad that you have already visited our international site to check rates while you travel. If you added an International Pass to your account that includes voice and you travel to Panama, you can make calls to Panama phone numbers for free. Same for Jamaica or any of our Simple Global countries. If you search a country and see that they have discount rates with our Simple Global rate plans, then you know they are a Simple Global country and will be free as long as you have the International Pass active. 

Hope this helps!