No dahua upgrade few times a year
With the return of dahua agent
For exemple vto2000a had 5 upgrades in 2 years to fixe bug or add function.
Its Best brand i Know for that. Its very serious.
But i recommand always to choose à dahua agent for buy dahua product bécause dahua sell only to...
I test it you cant management vth remotly événements with smart pss, you can communicate :
Smart PSS > VTH
VTH > SMART PSS
Send message text from smart pss to vth.
And now with vth5221w-c (caméra in vth) you can have vidéo conférence bêtween 2 screen
I advise the vth5221w for the vto3211d-p2 bécause is most récent, but if You want to use vth1550ch you must upgrade and in this case you dont have french firmware. I ask dahua Last week but no french again for the firmware v1. 0.0 blue interface for moment
yes smart PSS is dahua videosurveillance software, you can manage id card without intercom at hand.
by the way you can't add card with only intercom hahahah !
for firmware is the firmware V1.0.0 but with blue color interface