I have 3CX installed on a server with a Cisco 7940 phone on the network. A Linksys 3102 is connected to the telephone socket as a gateway so I can have calls through the home telephone line. The problem is that there are 3 ordinary phones elsewhere on the same telephone line. How will 3CX react if I answered the Cisco phone and then wanted someone else to take the call elsewhere in the house? Could someone pick up a normal phone, I put the Cisco phone down and all is well, or will that cause problems? A similar problem is that I installed 2 x Linksys 3102s on 2 BT lines for a local company, and they have a fax machine on one of the lines that 3CX does not know about. I realise I should probably have another gateway for the fax machine, but will this matter much? My concerns are that a call may not be put down properly, and thus no-one can get through, not to mention the worry of cost if the call was to a mobile.