VTO call support (2 way communication)

[luzik]

It would be great to have roller/dahua support two way communication!

I believe this is great idea to HA take over VTH devices with roller/dahua

New VTO have already built in SIP maybe this plus what https://github.com/tommyjlong/doorvivint-card have under the hood will work ?

[rroller]

Great idea! I'll keep this open and work on it after I finish some of the other issues.

[lesykm]

Looks like AD410 implements bidirectional audio using ONVIF Profile T.
At least Amcrest View Pro Android app which works without any internet/cloud is able to implement bi-directional audio with AD410.
Not sure if this will help but may be decompilation of Amcrest View Pro can highlight of how does they implement it?

[mattkerrison]

Yea would love this to work as the ios app forces landscape when you answer currently.

New to ONVIF profiles but assume it has to be exposed somewhere as I noticed the DMSS app as well as Synology Surveillance Station can also do bi-directional audio.

I'd even settle for being able to fire off the 'quick reply' recordings that you can use in the amcrest app, but I haven't seen those anywhere either.

[conorlap]

Would love this feature, would be killer!

also +1 for @mattkerrison 's suggestion of being able to fire off the 'quick reply' recordings!
@rroller should we create a separate issue for the 'quick reply' feature request?

[conorlap]

For the Amcrest AD410, someone got 2-way audio and sending audio clip via the Tinycam app, all locally: https://www.reddit.com/r/BlueIris/comments/lpkt8z/achieved_local_doorbell_with_2_way_audio/

[conorlap]

Some progress being made on the WebRTC card side.

AlexxIT/WebRTC#243 (comment)
The AD410 supports RTSP backchannel which may allow 2 way audio.

[AlexxIT]

Can you help me to find user Dahua IPC-K42 or IPC-K22? I want to check if this models support RTSP backchannel before bye it for development purposes.

[luzik]

As SIP way is also some way to go, there is now a working solution using go2rtc. Please look at #181 (comment)