Cisco phones use udp ports 16384-32776, while Xlite uses something like udp ports 8000-8050, and Polycom phones use another range, etc. If you worked for a large company that didn't have any sip phone standards and you had to open everything that _could_ be used for rtp, then you really would be opening a hugh number of udp ports. At least some of those ports have other uses.
Thank you all for the insights and explanations. May I ask is it possible to fix the SIP phones to a specific range? I guess there will be options in the configuration menu to override to factory UDP port range?
Regards, Norman Zhang _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
