A working Internet connection can have up to 1-3% packet loss with no significant noticeable interruption in service for web browsing and streaming, BUT significant noticeable interruption will happen for real-time services like VOIP.Voip-info says : VOIP is not tolerant of packet loss. working Internet connection can have up to 1-3% packet loss with no significant noticeable interruption in service for web browsing and streaming, BUT significant noticeable interruption will happen for real-time services like VOIP.