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Cisco PIX Firewall Configuration For Use With VoIPZone Service

Article ID: 000115
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Views: 1699


Configuration updates to Cisco PIX may be required in case the customer complains about registration issues or OWA:

 

  • Verify that UDP port 5060 inbound and outbound in inherently permitted in ACL
  • Verify that UDP dynamic ports 49152 - 65535 are inherently permitted in ACL
  • Verify that UDP dynamic ports 16384 - 32767 are inherently permitted in ACL
  • Verify that the SIP Proxy and SIP outbound proxy IP address that the phones are registering to are both inherently permitted in ACL (inbound and outbound)
  • Verify that SIP Fixup is turned off by adding these commands to the running configuration:

    no fixup protocol sip 5060
    no fixup protocol sip udp 5060


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