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Cisco PIX firewalls and IP Office 2

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mikeduncan

mikeduncan

IS-IT--Management
Apr 23, 2004
32
AU
For everyones information:

If you are using a Cisco PIX firewall between an IP Office unit and an IP Phone (4602, 4620 etc), you MUST disable the pix H323 packet inspection. Otherwise the PIX will drop alot of important h323/h225 packets and cause the phones to work erratically, or in the case of the 4620, not at all.

The commands to run on the PIX firewall are:

no fixup protocol h323 h225 1720
no fixup protocol h323 ras 1718-1719

I am not sure if the PIX has any effects on trunks between IP Office control units.
 
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