Chapter 22 VoIP Solutions: SIP
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FortiGate VoIP solutions: SIP
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How the SIP ALG performs NAT
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Translating SIP session destination ports
Translating SIP session destination ports
Using port forwarding virtual IPs you can change the destination port of SIP sessions as they pass through the FortiGate unit.
This section describes:
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Translating SIP sessions to a different destination port
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Translating SIP sessions to multiple destination ports