Yes but the problem is that i cannot make call to SIP Client if it's not online.

Ok thank you for the answer.

So my camera client (103) is connected to SIP Server.

Also iRidium SIP Client (100) is connected to SIP Server.

When I push call button on door camera -> it will call for example to client 100 and everything works fine.

But if iRidium Client is not open it will not be connected to SIP Server so when i try to call iRidium SIP Client nothing happens of course.

Is it possible to run iRidiun SIP driver in background mode? So it would be online all the time?