I have used ISA with out issue. Although it was configured in a very trusting way. (ie No filters) If filters are applied you may want to read up on iptables and its effect of Asterisk and SIP. (You can Google for that) You will then have to translate the commands b/w iptables and MicroSpeak....
Other than that ISA should pose no problems for you. The Polycom however will need so stuff. Make sure that it can resolve IP address of you may find as Doug Lytle did that the phones drop off line (registration). Make sure you have the necessary options in DHCP. (NTP, BootServer, Time Offset), port 5060 should be open as well as what ever ports you need for Media. Alex > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:asterisk-users- > [EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] > Sent: Monday, June 09, 2008 12:01 PM > To: asterisk-users@lists.digium.com > Subject: [asterisk-users] SIP over M$ ISA > > My employer has recently moved from a Checkpoint firewall to MS ISA, or > so I'm told. Does anyone have and advice on configuring this to pass SIP > to/from a hard phone inside the LAN? They have one Polycom IP430 that > they need to register with an external hosted provider. > > Michael Graves > mgraves <at> mstvp.com > o(713) 861-4005 > c(713) 201-1262 > sip:[EMAIL PROTECTED] > skype mjgraves > FWD 54245 > > > > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
