I suspect that there might be more to this question than has been answered so far. Most firewalls will allow you to open and forward a port range; thus they are "SIP" compliant.
However, if you want more than one SIP client behind your firewall, you will want a firewall with a SIP application filter (to intelligently direct the SIP & RTP packets to the right client). So if I can rephrase your question for the group, are there any (linux?) firewalls with SIP & RTP application filters? We managed to build a rudimentary ISA Server application filter for SIP & RTP, but nothing commercial quality. Michelle Dupuis Technical Support Specialist Oxford Consulting Group Ltd. Making IT work for your business... T: (519) 672-8238 E: [EMAIL PROTECTED] W: www.ocg.ca _______________________________________________ --Bandwidth and Colocation provided by Easynews.com -- Asterisk-Users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
