Hi,

I would like to setup up my SIP server / PBX for my business, now we have some candidates:

1. Open source solution:

2. Business solution:

Below features are mandatory for our project:

We have some questions:
  1. Does the the Kamailio can works as a PBX ? 
  2. If yes, does the Kamailio support push notifications and video recording ?
  3. Does the Kamailio can works for Multi-tenant ?
  4. Does Kamailio  support Windows ?


So far according to our research, with the business solution:

Please help me to make the decision, base on your experiences, which one (open source or business solution) is good to us ?   I'm really new to VoIP...

Thanks in advance.

Best regards,