[cisco-voip] Deploying RSVP in a CM 4.1.3 environment to supplement locations-based CAC

[Paul Choi]

One quick note Robert, Cisco routers acting as H.323
gateways don't even register to CCM. That doesn't mean
they're not working properly. In fact, after adding an
H.323 gateway to CCM 4.1(3), the status will remain
Unknown or something to that effect.

Paul

--- Robert Kulagowski <rkulagow at gmail.com> wrote:

> I'm reading Cisco Voice GW and GK.
> 
> Most of my remote sites have a single WAN
> connection.  Those sites have 
> a location CAC of 270k in CM (which is what our
> provider will guarantee 
> in their real-time voice queue for QOS).  Remote
> sites all use H.323.
> 
> Only VM traffic goes over the WAN back to Unity; all
> other calls go over 
> PSTN.
> 
> If the WAN is out, then the site goes into SRST. 
> Users hate that.
> 
> At some sites we're deploying a second router
> through a different 
> provider.  No QOS on that link.  ACLs block voice
> traffic, because if I 
> allow phones to register over this link, then
> they'll think that they 
> can talk to Unity, and we don't want that.
> 
> I'm thinking that if I can setup RSVP, I can set the
> interfaces so that 
> the primary router has a rsvp bandwidth equal to the
> RTVo queue.  And 
> that the secondary router will have a RSVP bandwidth
> of 0, but will 
> allow SCCP traffic to traverse.  Phones will stay
> registered.
> 
> 1)  Is this feasible?
> 2)  Is it practical?
> 2a)  Is it solving my problem?
> 3)  I don't have to deploy gatekeepers, do I?
> 3a)  Locations sound an awful lot like zones - why
> can't my Polycom 
> H.323 video unit register to CM 4.1.3?  (why isn't
> CM a H.323 gatekeeper?)
> 4)  Will I set my locations bandwidth to Infinity
> and let the VGW decide 
>   what to do?
> 5)  Am I going to use AAR at all on CM?  Would I use
> a route pattern to 
> intercept the pilot number of Unity so that users
> that press "Messages" 
> get their call sent to the gateway instead of
> setting up a WAN/IP call?
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> 



       
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