* Remove Route header and $du handling if Route present in an inbound packet (due to TOPOS we should never have Route headers from outside)

* [EA-41] Updates for TLS register request

* Refactor TLS registration handling in kamailio.cfg

- Updated logging for TLS registration checks to use L_INFO level.
- Simplified the logic for determining if a phone number requires TLS.
- Added SRV query checks for TLS domain resolution.

These changes enhance the clarity of the logging output and improve the handling of TLS registration requests.
NethServer/dev#7240
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Co-authored-by: Paolo <paolo.visintin@timenet.it>
Co-authored-by: Stefano Fancello <gentoo.stefano@gmail.com>