You can record VoIP calls on Android one-sided. Use third-party VoIP call recording apps like Cube ACR or TheOneSpy, OgyMogy, which support platforms like WhatsApp, Telegram, Viber, WeChat, and Facebook Messenger. On a rooted or non-rooted device, these apps provide more stable and high-quality recordings by accessing the Mic or camera. Some apps use accessibility services or screen recording with audio or video to capture VoIP calls. Always ensure recording is legal in your region for parental control or business.