Which ones are Sinology Two way audio (in/out) supported IP cameras?   ABUS Device Name Device Type Video Codec Pan Tilt Zoom Digital I/O Audio I/O  Highest Resolution Version  Camera Note IPCA33500 Camera MJPEG H.264 In/Out In/Out 2048×1536 Device Pack 4.5.0-1348 IPCA53000 Camera MJPEG H.264 Z In/Out In/Out 2048×1536 Device Pack 4.5.0-1348 IPCA72520 Camera MJPEG … Continue reading Sinology Two way audio (in/out) supported IP cameras