Multiple VTO and VTH SIP Server Setup

[smoshep]

Hey,

I'm trying to set up 2 VTOs with one VTH and with no success so far.
Only one of the VTOs can connect to the VTH, while the other one can't, meaning my outdoor intercom doesn't show any message on the VTH and I don't know when someone is in the gate

I followed the following video but still get an error message when I'm pushing the bell icon on the external VTO.



Any other guide I can use? What am I doing wrong?

Thanks!
Moshe.

 

[smoshep]

I can access the VTO from the VTH (see the camera stream) bust when I push the "Calll" button on the VTO outside unit I'm getting a "The person you're trying to call is unavailalble" message.
What am I doing wrong?