How to use the video call between Tmall Elf and the elderly at home?

Enter the Tmall Elf mobile APP and click the "Message" icon button in the upper right corner.

Entering the "Communication" interface, we click the "Phone" icon on the right side of the bound Tmall Elf.

Then select the "Video Call" button in the drop-down list shown below.

The Tmall Elf mobile APP began to make video calls to the Tmall Elf at home, so if the family found the video invitation, they could make video calls after receiving it.