SDES Support in Asterisk 18 and PJSIP

Hi all

I am working on adding SDES support in Asterisk 18 and PJSIP, and I have a few questions:
1: Is it possible to specify which cipher to use?
2: What is the impact of the “media_encryption_optimistic” attribute?
Thank you for your time and assistance.

What you see for configuration options is what there is. As for optimistic:

“Determines whether encryption should be used if possible but does not terminate the session if not achieved.”

Hello.
Ok sorry , my bad.
And fot cipher
Thx a lot