[Kamailio-Users] Secure VoIP

[Daniel-Constantin Mierla]

On 02/25/2009 12:05 PM, Henning Westerholt wrote:
> On Wednesday 25 February 2009, Steven Wu wrote:
>   
>> Does anybody know how to configure OpenSER 1.3 to support secure VoIP?
>>
>> Another question about SIP is how difference between sips and TLS?
>>     
>
> Hi Steven,
>
> you find some documentation about TLS support in kamailio/ OpenSER here:
> http://kamailio.org/docs/tls.html.
>
> SIPS is the secure variant of SIP, it uses TLS to encrypt its data.
>   
IIRC the specs, sips is the indication that the user does not want to be 
reached unless there is a secure channel, e.g., TLS. However, not sure 
if this applies as well if between caller-server-callee is IP sec or 
other secured transport and SIP is sent over it.

Looking at uri comparison, sip:a at b.com is different than sips:a at b.com. I 
haven't any real sip device using sips so far. Has anybody of you seen 
some usage of sips indication in SIP addresses?

Cheers,
Daniel

-- 
Daniel-Constantin Mierla
http://www.asipto.com