[cisco-voip] Polycom Video integrated to Cisco

[Malcolm Caldwell]

On Thu, 2008-09-11 at 11:19 -0500, Robert Kulagowski wrote:
> Justin Steinberg wrote:
> > I'm still trying to find my way out of the maze.  that document is very 
> > confusing to me, problably the same thing that is confusing you and that 
> > is why do we need secondary numbers.  No where does it explain the 
> > purpose of those numbers. A little theory before the application here 
> > would go a long way.....
> > 
> > I am going to stick with TDM switching with the Polycom connected via 
> > PRI to the same ISR that terminates the CO ISDN circuits.
> 
> I'm still working my way through this new feature.  I've got a TAC case 
> open (Polycom's are still only making 128K calls, and often no video), 
> but still no "cook book" explanation for how this is supposed to work, 
> or if it even makes sense.
> 
> With a Polycom HDX 4002 at a site and a Codian 3241 PRI gateway, I can 
> use the built-in GK in the Codian, and register prefixes "1" and "011". 
>   The endpoints register to the Codian and can dial "normally" (no user 
> training required).
> 
> Even if I get this feature to work on the 2851, it seems like I'm still 
> stuck because 12.4(20)T doesn't have a built-in GK featureset option, so 
> the endpoints can't register to the 2851; I would need the IP address of 
> the 2851 in the dial field on the Polycom, and the actual phone number 
> that I want to dial in the "extension" field, which is awkward.
> 
> Latest IOS that seems to have the GK functionality is 12.4(2)T, and that 
> one wouldn't have the channel bonding feature...
> 
> Thoughts?

The obvious solution is to find another gatekeeper. 

For example a fairly low end server can handle a lot of calls running
something like gnugk http://www.gnugk.org/