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Sip over Pix Firewall in version 6.3


I'm having problems with Sip over my firewall. I am able to establish a call from the oustide office (inbound) to my Main office.

But I CAN'T establish the call originating from my main office to the outside.

There are no outbound restrictions in my firewall (default open access), which is why I believe the problems is with the VOIP server. Note that I can connect from the outside to the inside with no problem.

1- Pix is using static nat for the VoIP server

2- I configured fixup protocol sip 5060

3- I configured fixup protocol sip udp 5060

4- Acls have port udp 5060 for sip opened for inbound access.

show timeout sip: timeout sip 0:30:00

Any feedback will be appreciated

Thank you

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