While I don't specialize in security cameras I increasingly get IT clients wanting good audio capabilities for customer service areas. To add to the confusion we have different versions of Hikvision firmware, etc that have working/non working audio. I don't have time for that. I need suggestions for an indoor IP cam at least 2mp and PoE that has excellent out of the box audio capability combined with Blue Iris. Or, can be combined with a specific external mic to produce excellent audio. Please be specific with models and sellers.