Release notes

c) A standard SIP registration status icon is added to the main interface, which can be
displayed/hidden according to whether standard SIP is enabled;
d) Added a VoIP call button in the call interface to distinguish standard SIP calls
4) Supports two audio formats, G.711U and G.711A. (And G.711U priority is greater than
G.711A)
NOTE：
1. At present, the indoor station can support customization requirements of more than 5 extensions;
2. The description of ONVIF in the local UI of the indoor station is uniformly changed to open
network video interface.
3. The main indoor station and indoor extension must use the same firmware version. And starting
from this firmware version, the 1
st
generation video intercom indoor station will not be compatible
as a main indoor station or indoor extension to connect this 2
nd
generation firmware version system.