Unlike 30 years ago, it has become more challenging to collect calls to the US from abroad. In the past, the telephony system was a monopoly in most countries. Nowadays, sometimes there exist multiple phone operators, and every operator has its way of calling the US. Moreover, most regulations in the past were for land-line only.
Do not expect easily to collect calls to the US in case of emergency. Therefore, prepare for an emergency plan before you leave the US. Moreover, in this pandemic time, be aware that the waiting time to call -- for example -- a customer service line will be about 30-60 minutes. Consider preparing for calling a toll-free number in the US. Make sure that all preparation is done before you leave abroad.
Install A Cell Phone App
Install an app like Skype. Skype is available on various platforms like Microsoft Windows, GNU/Linux, macOS, and iOS. You need a Microsoft account for using Skype. And it would be best if you had an email account and a reliable internet connection to set up your Microsoft Account as well as Skype.
This is HOW Me Do IT! Grrr... this blog memo is mainly written for OWN PURPOSES. This post is based on "Google There, Google Here, Try That, Try This, Then Ask". Whether this is PLAGIARY or RESEARCH, there has never been a claim that this is an original work, nor is it necessarily the best solution, and not for Scopus consumption :). Please provide feedback, especially if you have alternative explanations. Hopefully, this note will be helpful in the future when you have forgotten how to solve this trivia problem.
INIlah yang KUlakukan! Grrr... memo blog ini terutama ditulis untuk KEPERLUAN SENDIRI. Tulisan ini berbasis "Google Sana, Google Sini, Coba Itu, Coba Ini, Lalu Tanya-tanyi". Entah ini PLAGIAT, entah ini RISET, yang jelas tidak pernah ada klaim bahwa ini merupakan karya asli, serta belum tentu pula merupakan solusi terbaik, serta bukan untuk konsumsi Scopus :). Mohon kiranya memberikan tanggapan, terutama jika memiliki solusi alternatif. Semoga catatan ini akan bermanfaat di masa mendatang, saat sudah lupa cara menyelesaikan masalah trivia ini.