I'm currently working on a proxy where I need to change To and From headers in order to normalize the numbers to +E164.

I would like to be able to restore using and $avp() or $dlg_var() and without writing parameters on the Record-Route headers.

I've tried to use restore_mode in auto mode and restore_dlg parameter with value 1 but still got the parameters on the inserted Record-Route.

I've tried manual mode and using the configured $avp() to restore, but the parameters still got written on the Request-URI.

I thought of using restore_mode with value "none" saving original values in an $avvp() and doing the replace, however, uac_replace() on Request Route or branch routes. That way i can't replace the values of To and From in the replies.

That being said, my questions are : 

    - Is there a way to use manual or auto mode without writing info on the Record-Route and only using $avp() ? 

    - Is there a way to make changes on the To and From header on replies?

Thanks in advance,

Best Regards,

Duarte Rocha