nathelper: This is a module to help with NAT traversal. In particular, it helps symmetric UAs that don't advertise they are symmetric and are not able to determine their public address.
  

• fix_nated_contact: rewrites Contact header field with request's source address:port pair.
• fix_nated_sdp adds the active direction indication to SDP (flag 0x01) and updates source IP address too (flag 0x02).

Example

• SER example NAThelper: Example on how to configure

See also

• Nathelper documentation
• NAT and VOIP
• RTPProxy

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