This feature does not exist.

The "natping" functionality in nathelper (and something similar in nat_traversal) is designed to help keep stateful UDP pinholes open for NAT traversal on the client side.

Pascal Maugeri wrote:

Hi

How can we set the expires value of the REGISTER OK sent back to the clients in a dynamic way ?

We set already a value with

modparam("registrar", "max_expires", 120)

but if the UA has been detected to be behind a NAT we want to apply a different value.

Regards, Pascal

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