[cisco-voip] srtp cme to cucm

[Nick Matthews]

This is a combination of 3 things - secure CME (secure SCCP), secure
H.323 or SIP, and then a secure CUCM cluster.

Even then you can just encrypt the signaling (TLS) or encrypt the
signal and media (TLS + SRTP).  This is not a small undertaking, as
cryptography has quite a bit of configuration associated.  I would
confirm that there is business justification for either case, as it
adds complexity to many aspects of the implementation and
troubleshooting.

I'm not sure if you'll see much of a difference between H.323 and SIP.
 I prefer SIP just because I can read it better and it's more
future-proof.  More of a personal opinion - others may like H.323
because 'it just works'.

-nick

On Tue, Mar 29, 2011 at 12:54 AM, cisco.voip <cisco.voip at verizon.net> wrote:
> All,
> Can I do srtp between my CUCME 8.5 branch offices and the Call Manager 7.1.5
> HQ servers?
> What is the current best practice to connect CME to Call Manager - H323, SIP
> trunk?
>
> Thanks.
> Cisco.Voip
>
>
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