Are VoIP services like WhatsApp and FaceTime calls fully functional with DataESIM in Iran, or should I anticipate restrictions?

In Iran, VoIP services, including voice and video calls on platforms like WhatsApp and FaceTime, face significant network-level restrictions that can impact functionality, even with a VPN. While DataESIM provides a stable data connection, these specific services are often subject to throttling or blocking by local carriers. We recommend preparing for text-based communication via encrypted messaging apps like Telegram or WhatsApp with a robust VPN. DataESIM ensures your underlying data connection is optimized, but specific app performance can vary under these regulatory conditions.