[asterisk-users] End-To-End Secured Communications

[Fernando Berretta]

Hi,


I'm analyzing how to make Asterisk communications secured End-To-End, 
and not sure which is the best approach, SRTP + TLS seems to be secured 
but.. at least by default, doesn't appear to be End-To-End allowing 
Asterisk administrators to wiretap communications.. some sites I've hear 
that with SRTP is also possible End Points exchange keys between them 
directly avoiding Man in the Middle, is it possible with asterisk ? how

On the other hand I've found ZRTP seems to be secured end-to-end, but we 
couldn't find any IP phones with support for it.. just SoftPhones

Could someone please point me to the right direction ?

Thanks,
Fernando