The older hardware version than v2.0 can’t be improved to be louder the voice volume of the AC6000 when it was communicated with the door phone even if the firmware was upgraded because it comes from the initial hardware design.
On the other hand, if you used the AC6000 (v2.0), you can get loud the voice volume by means of the attached guidance.
However, if you’re unsatisfied even though you set the voice volume to maximum, there is no solution because it needs to be changed the hardware design.
support@virditech.com
www.virditech.com
