Alexa supports “2-Way Communication” in Alexa skills:
https://developer.amazon.com/en-US/blogs/alexa/device-makers/2018/10/announcing-doorbell-chime-announcements-and-2-way-communication-apis-unlocking-new-customer-scenarios-in-home-automation-and-monitoring
This allows a user to say “answer front door” and have a two-way conversation with someone via a doorbell (on their Alexa device - e.g. Echo Dot, Echo Show, etc). Currently, the EufySecurity Alexa skill does not support this.
The EufySecurity Alexa skill does however support the DoorbellEventSource interface, allowing users to be notified when the doorbell is pressed:
https://developer.amazon.com/en-US/docs/alexa/device-apis/alexa-doorbelleventsource.html
I run a software development team with experience in Alexa skills. We would be happy to assist with this. Or provide alpha testers if this is something you’re already developing internally.
Best Regards.