dan_york at Mitel.com
Wed Feb 22 19:01:00 GMT 2006
> Interesting discussion (as always).
Indeed. That's one of the things I so much enjoy about this list.
> In investigations here I have been trying to gather from the vendor
> what the current adoption is of SRTP within handsets, ATAs, etc. So far
> seems the majority of the big players in this space do not support SRTP
> in fact, the processors within their phones are incapable of doing so
> they are often running close to their peak. Many speak of 'planning to
> support' but nothing in concrete. Have others found anything different
I can't speak for the other vendors, but we've been using SRTP in our hard
since late 2002/early 2003 when we first rolled out our Teleworker
mid-2005 we came out with a new release (6.0) of our 3300 ICP (or main
that brought the SRTP support directly into our core, applied it across
our sets and also made it the default behaviour. Every Mitel IP-PBX since
time has been going out with SRTP on by default for all sets.
Granted, this is our MiNet call control, but most of our set models can
dual-boot and be brought up into SIP mode to work against SIP systems and
there they support SRTP as well. The challenge with using SRTP between
SIP sets is really one of interoperability. Until we can all agree on
to securely exchange SRTP keys (i.e. MIKEY, sdescriptions, other methods)
think that will remain a barrier to widespread SRTP adoption within the
space (in my opinion).
As far as I know, both Cisco and Avaya support SRTP as well, although I do
know with which sets and under which circumstances.
> SRTP to me seems to be the preferred path for hard CPE (SIP
I expect you will see most all the vendors moving that way.
> I agree there are other alternatives for the soft-client approach but
> tells me hard phones are a requirement by most customers for 'work from
Working out of a home office, I can say that I do prefer a hard phone
for a number of reasons, including the very basic one that I don't have to
computer on to make/receive calls. I do use softphones as well, but it's
awfully nice if you need to make a call just to be able to go into my home
office and pick up a handset on a regular old phone (well, a secure IP
Dan York, CISSP
Dir of IP Technology, Office of the CTO
Mitel Corp. http://www.mitel.com
dan_york at mitel.com +1-613-592-2122
PGP key (F7E3C3B4) available for
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