[VOIPSEC] Asterisk with SRTP and SIP over TLS

[Klaus Darilion]

Iñaki Baz Castillo schrieb:
> El Jueves, 19 de Marzo de 2009, Alejandro Cabrera Obed escribió:
>> Dear all, I want to know if anybody has implemented an Asterisk server (1.4
>> or 1.6) with SRTP and SIP over TLS, in order to encrypt both signaling and
>> voice packets.

AFAIK 1.6 supports TCP and TLS, but not SRTP (but there is a patch in 
review at the moment). But probably TLS is not mature (like in any 
existing SIP software)

>> Does it really work ??
> 
> AFAIK SIP TCP support in Asterisk is not stable and not well implemented 
> (hopefully yet, but since Digium has not too much interest on SIP 
> protocol...).

Although the SIP stack of Asterisk is not the best, from my point of 
view Digium is doing lots of work on the SIP stack to make it more 
stable and adding new features.

regards
klaus