I have a budgetone behind nat it registers with ser fine. I can make a call from it to another non nat budgetone fine.

In the following scenario

budgeton(no nat) -> ser -> asterisk -> ........, things work fine

However in the following scenario

budgeton(nat) -> ser -> asterisk ->....., asterisk cannot authenticate the forwarded messages from ser

If I remove the authentication requirement from asterisk there is no problem.

Is there a problem with forwarded authentication when the phone registered with ser is behind nat?

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