[Users] registering E60/N80 behind NAT to openser

Markus Monka mmonka at sipgate.de
Wed Jul 12 19:01:50 CEST 2006

Hi everybody,

does someone has Nokia device (E60|N80) connected to an openser
in an (symmetric) nated enviroment?

I use nathelper and mediaproxy and it is the error/mistake a get.

While using fix_nated_contact or fix_contact, the device discarded the
200 ok response and displays an error. 

Nokia says, that rewriting the contact is a NAT Travesal trick, no
and the Stack denied the response.

Any Ideas how to solve this problem?

Best Regards,

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