Notes about Hanwha Techwin SNO-8180R and SNV-8180R units - Security Center

Security Center Video Unit Configuration Guide

Security Center

If you are using Multicast as the Connection type for the microphone on a Hanwha Techwin SNO-818IR or SNV-8180R unit, audio does not work.

As a workaround, enable multicast for audio on the unit's web page for the Mobile profile.