Hikvision 2 way talk error code

[mumin]

When ever I try to use my 2 way audio camera I get this error code
031003 also I can't sound the alarm on the camera.

 

[JB1970]

When ever I try to use my 2 way audio camera I get this error code
031003 also I can't sound the alarm on the camera.

More information needed:

• camera model number
• camera firmware version
• NVR model (if camera connected to NVR)
• NVR firmware version
• Android app or iOS app
• Hik-Connect version
• How is the camera or NVR linked to the Hik-Connect app

 

[mumin]

(Analog Camera) DS-2CE16DOT-LPXTS
I currently can't tell you the firmware version

(DVR) IDS-7204HUHI-M1/X
V4.75.101 build 240419

Android
6.6.500.1107

 

[JB1970]

(Analog Camera) DS-2CE16DOT-LPXTS
I currently can't tell you the firmware version

(DVR) IDS-7204HUHI-M1/X
V4.75.101 build 240419

Android
6.6.500.1107

Looking at the specs, the camera is an AoC model (Audio over Coax). However I can't see anywhere in the specifications for the DVR that it's an AoC model. My guess is that the DVR doesn't support it and that's why you're getting an error code.