SIP TLS and DSCP (tos)

Hi every body.

I’ve got an asterisk 13 and SIP TLS is configured.
It seems dscp value is CS0 (0).
in sip general settings, tos_sip, tos_audio,…etc are by default.
This config works fine with SIP under UDP standrard. Dscp are tagged.
If i use SIP TLS, there’s no dscp (CS0) instead of ef, cs3, …Etc.

  • It’s a bug?
  • It’s normal?

Thanks for your help.