UniFi doorbell automation

New to ha. Looking to automate the UniFi protect doorbell to home speakers (mostly done already) and or to a home sip phone up? I’d love to press the ring button on my doorbell - which I can trigger an automation - and have that automation ring my home phones. I have a grandstream sip set up. Can I register ha as a VoIP trunk on my grandstream and automate a call to a ring group? Thx