Are these Arlo's base stations' TCP ports supposed to be opened?

[ant]

VMB4000 (Arlo Pro 2):
Host is up (0.0092s latency).
Not shown: 997 closed ports
PORT STATE SERVICE
554/tcp open rtsp
5061/tcp open sip-tls
8100/tcp open xprint-server
Nmap done: 1 IP address (1 host up) scanned in 0.26 seconds

xprint-server???

VMB3010 (original Arlo):
Host is up (0.013s latency).
Not shown: 999 closed ports
PORT STATE SERVICE
5061/tcp open sip-tls
Nmap done: 1 IP address (1 host up) scanned in 0.33 seconds

Just curious when I portscanned in my own network behind a router. Thank you for reading and hopefully answering. 🙂

[slsjr]

I'd like to know too.  Any response?

[jguerdat]

I'm not a network wizard and have never played one on TV but my thoughts are that these ports are used for doorbell and local access purposes. Just guessing using the descriptions...