Thanks to Gino for his excellent support! After several fruitless days of emails back and forth to different OneSim support folks to get my voice calls working, it was Gino who very patiently did extensive trouble shooting and discovered the solution - now I can call out and receive calls using the 1SIM Voip app. And he clearly explained how to use either the Internet or SIM data, and how to set up my Samsung to minimize background data costs from all the other apps. Being able to speak with him on my landline while he was troubleshooting was key.

Expensive choice that works in East Africa but did not work well in the USA This card may be useful if you travel a lot, but it is way cheaper to buy a local card. I got one to travel in Africa and to use in the USA. The coverage in East Africa was fine, but it was very expensive to run. The coverage in the USA was unreliable and cost was so high that I bought a local pre-pay card for much less. They give no refunds on extra credit if you top-up in case you need it. My purchase of this card ended up being an expensive experiment that was rarely worth it.

Worked for a while and then became a… Worked for a while and then became a problem, who this day an age requires a form to be filled i with your credit card details - for a payment? Sounds like a phishing technique. Not for me...

I am giving 5 stars because the… I am giving 5 stars simply because the customer service agents stuck by me for two long trouble shooting sessions when in the end, I discovered that it was MY problem because I had "Do not disturb" clicked on my phone resulting in voice calls not connecting. The service now works fine. My data package is 2000 MB for under $25----reasonable. GPS doesn't use that much---primary reason for me.

Five Starts for valuable personalized assistance… 5 stars for the valuable assistance received from Gino over the phone for me and wife. He is very knowledgeable about SIM card functions and phone operations (both android and Apple) and patiently explained everything. He also made useful suggestions about data plans based on our specific travel plans including how to get the best value on the different options. We haven't used the card yet so this review is based and very appreciative by the exceptional customer service we received from Gino. We hope Gino gets an extra company bonus for next Christmas. :-)