Roaming is handy to see who is calling. If you don't pickup and voice mail box is disabled, it doesn't costs any cent. Remember to reset all diverts and disable voice mailbox before leaving SA. USSD code is ##002#. For any other purpose it is Whatsapp, Telegram and Skype with local SIM.
One thing breaks this rule: Cell C WiFi calling. It works the best, as the service is transparrent.
EDIT: I see your message about SMS. If you leave for US, remember that Telkom has no agreements with some US partners for SMS's (or agreements are defective), it is in their FAQ. Double check to be sure.
After my last trip I saw that there is a provider that does cheap international roaming sims. Both data an call rates were way better than what we have here.
Yo.Hi, what is it called?
For dubai get a simcard there it'll be cheaperSo to explain my situation, I needed the sms roaming to contact family who is traveling with me.
I am then also looking for a data solution for Uber, email and travel browsing. Preferably also some local minutes. What would you guys suggest?
for 75AeD you get 1gig and 150 anywhere anytime minutes valid for a monthFor dubai get a simcard there it'll be cheaper