I also kept my DTAC number (prepaid) for 5 years because if this DTCA call-APP! And the good one, the SIM does mot need to be in the phone, where DTAC call runs. So, the stop of the support is very annoying, especially because not every phone is ready for wifi calling. And, yes a want to receive calls also when I*m in a european 4G-Network!!
so, what do i have to do? To put the SIM in Thailand in a wifi-calling-able phone and enter the *444 .... ??
do i get a response then?
but then i can use ONLY this phone for receiving calls ?
