T25 an Grandstream GXV 3275 kein Preview

Hello, a T25 is connected with Grandstream GXV3275 and everything woks fine but not preview.
By pushing BellRFID GXV3275 is ringing and showing a black window on LCD but not the camera picture.
Is there anything to adjust in T25 to send the camera picture as preview?

Hi,
Unfortunately not, the call has to be accepted for the T25 to deliver SIP video. There are some displays that can deliver a live image while beeing called, this one for example: Fanvil i53W
A customer told me that this works fine, we ourselves have not tested that and can not guarantee that it works.
Regards,
Ben

thanks for the information.
Dirk