Thanks for the follow up, but i have never used the decvice in question. So couldnt add anything. Id be cautious of that info as rtsp urls are usually different from each manufacturer unless you can edit them in some way.
There is gear we rate some is poor some is great. I doubt any of us thats worked with it has pyronix in high regard. Castle yes pyronix no. I'm hoping hik will make castle great again but it's not about that so probably no.
Why would you want to. A bell is a type of signalling just use more than 1 and better signalling. The bell usnt what deters intruders its the fear of getting caught. If Noone hears the bell Noone will respond etc etc