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Old 11-03-2008, 09:25 AM   #1
ciscovoip
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Default Howto disable SIP unauthorized SIP Trunking?

Hello,
Please help, I have situations like on the picture:
http://www.niten.biz/security/acl.jpg

I need to create ACL for disable hackers establish SIP trunking etc.
ACL must block all traffic except Voice protocols...(RTP,SIP,TFTP,NTP etc.)
Any Ideas?

Thanks.

Regards,
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