Is it posible for the IPBX to support range of IP addresses like
192.168.20.1-254
192.168.21.1-254
192.168.22.1-254
192.168.23.1-254
192.168.24.1-254
192.168.25.1-254
While the IPBX is on 192.168.20.10
the client has the above scenario, at the moment only Phones on dot 20 can work, can someone assist