[VOIPSEC] What % of voip apps or devices actually use SRTP or ZRTP to encrypt audio calls

[Hannes Tschofenig]

SRTP is he way to encrypt the RTP traffic. 
ZRTP, DTLS-RTP, SDES, etc. are ways to do the key management. 

A more complete list of key management proposals can be found here: 
http://tools.ietf.org/html/rfc5479

So, I think you want to know two things: 

a) What is the percentage of SRTP traffic in relationship to RTP traffic? 
b) For the SRTP traffic what key management is used. 

Ciao
Hannes

On Dec 2, 2010, at 3:59 PM, SM wrote:

> Hi,
> 
>  I was wondering about what percentage of voip apps or devices actually use
> SRTP or ZRTP to encrypt audio calls in 2010. Are there any confirmed
> statistics for this? Has any study been done on this? Can I and where can I
> get such data?
> 
>  Thanks for your early reply and have a wonderful day ahead.
> 
> Regards,
> SM.
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