Voice over IP
The VoIP integration enables users to talk to Assist using an analog phone and a VoIP adapter. Currently, the system works with the Grandstream HT801. See the tutorial for detailed instructions.
As an alternative, the Grandstream HT802 can be used, which is basically the same as the previously mentioned HT801, but has two phone ports, of which Home Assistant currently support using only one of them.
Also, the Grandstream HT812 has been reported to work. Home Assistant supports using only one of the two phone ports.
Connecting a phone to Home Assistant requires an adapter.
Adding Voice over IP to your Home Assistant instance can be done via the user interface, by using this My button:
If the above My button doesn’t work, you can also perform the following steps manually:
Browse to your Home Assistant instance.
In the bottom right corner, select the Add Integration button.
From the list, select Voice over IP.
Follow the instructions on screen to complete the setup.