Hi Waleed, Might work if the front end supports SIP, like a WinXP ICS box, or something similar that UPnP compliant, so that it can dynamically learn what ports viruses and worms (opps! I mean games and voice/video app) require for access. Tom Thomas W Shinder www.isaserver.org/shinder <http://www.isaserver.org/shinder> ISA 2004 Beta - Get it now! http://www.microsoft.com/isaserver/beta/default.asp <http://www.microsoft.com/isaserver/beta/default.asp> ISA Server and Beyond: http://tinyurl.com/1jq1 Configuring ISA Server: http://tinyurl.com/1llp <http://tinyurl.com/1llp> -----Original Message----- From: G. Waleed Kavalec [mailto:Kavalec@xxxxxxxx] Sent: Thursday, June 24, 2004 1:39 PM To: [ISAserver.org Discussion List] Subject: [isalist] RE: VOIP phone http://www.ISAserver.org Might this work... Put a low-end box in between, and IP route to an internal NIC. Cable modem (public IP) -> (nic1) voip box voip box (nic2 10.0.0.1) -> (nic3) ISA ISA (nic4 192.168.0.1) -> internal Oversimplified, of course ---------------------------- G. Waleed Kavalec Baca, Stein, White and Associates 281-342-2646 -----Original Message----- From: Ray Dzek [mailto:rdzek@xxxxxxxxxxxxxxx] Sent: Thursday, June 24, 2004 1:32 PM To: [ISAserver.org Discussion List] Subject: [isalist] RE: VOIP phone http://www.ISAserver.org Easy... just unplug the ethernet from the ISA and plug it into the phone. Then all your ports are open. Yes, you would need another IP address from your provider.