International mobile services

On Pinoy.Tech.Blog, I share an exchange I had with a gentleman from Geneva regarding mobile services on a global scale.

Currently, I can think of three mobile services that generally work globally across different countries and different mobile networks: IDD calls, International SMS and International MMS.

But aside from these, there aren’t any other mobile services I know of that can be used on a global scale.
So, what kind of mobile service will be useful on a global scale?

See International mobile services on Pinoy.Tech.Blog

ka edong
dreaming wide open

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