What can be the best way to avoid from expensive roaming charges while traveling to the different countries? Any Idea Please? I am traveling to several countries for business purpose but always face bitter experience of expensive bill while coming back to home country.....
You can use Skype to make calls form available Wi-Fi.
there is viber which uses 2g to make voice calls, I personally like hangouts for voice or video calls there are actually tons of options.
^ he will get charged for using mobile internet on international roaming.
Try matrix Sim. I had a personal experience with them. They do provide good calling rates.
