Using Phone Roaming or Phone wifi overseas

[Bredbury Blue]

Recently had a business trip to a remote location in Laos. I got dtac data roaming before I went but once I crossed the Ubon/Laos border I found that dtac data roaming was a waste of time as the laos phone service I connected to was poor or intermittent. Money wasted.

While I was at the laos office though, I connected to and used their wifi for internet. I also think I was able to call home using Line call or WhatsUp call (would that be correct? ).

I may have to go to a remote location in Vietnam for business and was wondering whether to forgo data roaming and use wifi/Line/WhatsUp.

Any advice?

[mtls2005]

DTAC (and AIS, and TrrueMove H) all support Voice over WiFi,, so that may be an option for you. This is the exact application it is meant for.

 

https://www.dtac.co.th/network/wifi-calling.html

 

If you have data (WiFi included) any app which supports messaging, voice and video would work assuming "home" or whomever you want to "call" is running the same app.

 

 

 

[Bredbury Blue]

^Thanks for that tip. I couldn't find it in english but I found this link (for anyone who reads this later)
http://en.postupnews.com/2016/03/dtac-wifi-calling-vowifi.html?m=1

[mtls2005]

Sorry about that, it just auto-translated for me, didn't even realize it wasn't in English.

 

 

https://truemoveh.truecorp.co.th/news/detail/198?ln=en

 

http://www.ais.co.th/4g/vowifi/  (in Thai only)

 

There have been quite a few threads here on this feature.

 

[Gary A]

Before you use your Thai SIM card in another country, check the rates. You may find them outrageously expensive. I tried it once in the US and although it worked well, my balance was used up VERY quickly. I ended up buying an AT&T SIM.