Are VoIP calls via WhatsApp or Telegram blocked or slowed down in certain countries?

In most of the countries SouthESIM serves, there are no restrictions on VoIP calls via apps like WhatsApp, Telegram, or Messenger. These apps are incredibly popular for communication, both locally and internationally. You can expect clear, unblocked calls. For instance, across much of Latin America and Southeast Asia, these apps are the go-to for staying in touch, and your SouthESIM data will ensure you can use them freely to connect with family, friends, or even local tour operators without any issues.