Does iVMS-4500 support live view with audio and two-way audio?

iVMS-4500 supports live view with audio and two-way audio. But it does not support two-way audio in case of the device which is added to the NVR. If you want to enable the function of the two-way audio, please connect the device to iVMS-4500 directly.
 
Note:The device should support two-way audio function.