@Solla-topee thanks for your reply. We ended up returning it for a Nest Cam 2nd gen as the audio quality is exceptional and full-duplex (the c210 seemed like an intercom, when it worked that is....)....

Hi I've just purchased a c210 and am finding the two-way audio quality is so terrible it is completely unusable. 1 -the mic on the device seems to have noise suppression enabled, which is...