Hi, I'm going to install freeswitch in a system with LAN redundancy (duplicated). All the pc have double LAN interfaces. How can I configure Freeswitch to work with this configuration? Actually in vars, the variable Domains has this value <X-PRE-PROCESS cmd="set" data="domain=$${local_ip_v4}"/> I have to set one ip of the two network interface? I need to set the sub-net mask? (example domain=192.168.2.101/255.255.255.0) Second question: All the PC with softphone will be connect at two LAN and the two LAN are on different Network. (Example one LAN is on network 192.168.2.0 and the other in the LAN 192.168.1.0). I bind the address of one of the two network to freeswitch. I will add the extension in the internal profile. How does freeswitch understand that an extension is in the local network? All the softphone should stay on the same network, right? What happens if an extension configured in the internal profile, try to contact FS from a different network? Best Regards Alessandro Luppi -- Ing. Alessandro Luppi Software development Seletech srl Via Collodi 8, 20052 Monza (MI) - Italy Tel: +39.039.5962000 - Fax: +39.039.9716905 email: a.luppi@seletech.com - Web: www.seletech.com or www.seletech.eu