[asterisk-users] Asterisk with encryption

[Alejandro Cabrera Obed]

Dear all, I want to know if anybody has implented an Asterisk server
(1.4 or 1.6) with SRTP and SIP with TLS, in order to encrypt both
signaling and voice packets.

Is it possible ??

And in the affirmative case, does encryption increase the delay and so
the voice quality becomes wrong ???

Thanks a lot.

Alejandro