Do VoIP applications like WhatsApp and FaceTime function reliably in Russia?

While text messaging on platforms such as WhatsApp and Telegram generally works in Russia, voice and video calls via these and other VoIP applications often experience significant throttling or unreliability. Russian authorities have been known to interfere with VoIP services, making consistent, high-quality calls challenging. For critical voice communications, traditional cellular calls or encrypted VPN services might offer more reliable alternatives, but direct VoIP is frequently compromised.