AmTel vs OneSuite

I have been with OneSuite for over 18 yrs I have brought my modem with me for multiple overseas visits. I was able to make and receive calls with clarity and reliability. I used their smartphone app since 2015 when I got my first smartphone, until recent the implementation of 5G service when I had to get a new phone. For years I would buy a data SIM card when overseas and use the voip app through the data stream (this was before Wifi calling folks). it has worked beautifully. Thanks to Android software changes the app has not worked with any of my android 10 or 11 phones. (still works with my 2015 android). Incoming calls have always been free, out bound calls depends on the country your calling but has always been very low priced. This is still a small company, I think I have always spoken with the same customer service agent over the years. He has been great to work with, but they are overwhelmed much of the time because of the small staff. They are in process to upgrade their app but they did offer an alternative app to use in the meantime. If you are looking for an inexpensive way to have a voip line this is the one for you. Be sure to at least receive a few calls (I use an old fashioned message machine) within the use limit or they will shut off the account. I was able to get mine re-instated the couple of times I neglected the line.