Olivier wrote:
With SIP fixup, would you say usual firewall traversal issues are solved so that for instance, you can connect home workers to enterprise PBX ?No. SIP fixup doesn't always solve the issues. One of the things I've noticed with home users is they're almost always behind a router that has its own firewall and that firewall is almost never configured properly. Create a how to for those workers and if possible, have that user isolate their phone to a DMZ if possible. Also depending on your internal networking, remember NAT + Certain VoIP phones (Polycom!) = headache.regards ------------------------------------------------------------------------ _______________________________________________ --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
Whenever possible while dealing with Asterisk, I personally try to lock down the machine and place it in a DMZ so home workers won't have to deal with DMZ's, NAT, and other terms that will leave them like a deer in a headlight. This varies according to the client though, since I deal with managed PBX's its also easier for me to administrate then it would be for me to have to wait for someone on their IT side to punch a hole in their network to let me in solely to add an extension or clear someone's voicemail. (So... Results may vary).
I've recently had a client who had three or four remote locations with a PIX in each location doing VPN's. PIX's fixup did little and I ended up having to butcher up rules to get things to work properly.
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