Looks like there is a SIP firmware for the VTO2111D doorbell! I don't have mine anymore, but this was just what i was looking for...
https://share.dahuasecurity.com:808...AC038&system=FCFA47E1A015A9EA85387DD5C18BFEF1
Všechny firmware pro zařízení Dahua naleznete také zde:
https://share.dahuasecurity.com:8080/Login.aspx
login: CZEGUEST
heslo: CZEGUEST2018
https://share.dahuasecurity.com:808...AC038&system=FCFA47E1A015A9EA85387DD5C18BFEF1
Všechny firmware pro zařízení Dahua naleznete také zde:
https://share.dahuasecurity.com:8080/Login.aspx
login: CZEGUEST
heslo: CZEGUEST2018