[cisco-voip] gatekeepers - when, why, how?

[Robert Kulagowski]

On Mon, Apr 12, 2010 at 9:09 AM, Chris Ward (chrward) <chrward at cisco.com> wrote:
> Well, that just means your UCMs can’t join the SAF network. The SAF
> forwarders and other IOS devices just need a 15.X IOS and they should be
> able to participate.

Can you provide additional information on how this can be useful in a
voice environment?  Configurations, etc?  The two links don't have
much, and one basically just punts:

"
Q. I understand SAF can greatly simplify my voice-over-IP (VoIP)
deployment. Where can I find more information on how to deploy SAF
with my Unified Communications 8.0 application?
A. Please contact the Voice Technology Group through your account
representative or reseller for more information or visit
http://www.cisco.com/go/saf.
"

Are you in the Voice Technology Group?  Can we consider this a "contact"? :)