[cisco-voip] Digit stripping on a Route-Group...

[ash AD]

There other ways to validate H323 fallback. Make sure if running H323 on the MGCP box as a fallback to ensure the MGCP to add the session target and destination pattern to the dial peers. 
   
  ! a typical MGCP DP:
  dial-peer voice 1 pots
 application mgcpapp
 port 1/0:0
   
  ! a DP with h323 support
  ccm-manager switchback immediate
ccm-manager fallback-mgcp 
ccm-manager mgcp

  dial-peer voice 1 pots
 application mgcpapp
 destination-pattern 91..........
 port 1/0:0
  !
  dial-peer voice 555 voip 
 application mgcpapp
 destination pattern 555...
 session-target ipv4:172.20.21.8
 codec g711ulaw
  
 
  To test fallback you can delete the MGCP GW in the CCM and attempt to process the calls. 

  Peter Casanave
  
Ted Nugent <tednugent69 at yahoo.com> wrote:
  I'm not 100% certain on this but I beleive that the
mechanism for initiating a fallback to h323 is a loss
of MGCP keepalives to callmanager (TCP 2428 I think?).
Which isn't likely to occur if CM is up and running.
Unless of course as Ryan mentioned MGCP went
completely belly up. However in most MGCP bugs that
I've come across the gateway is still (at least
partially) registered with CM and its doubtful that
this would cause a fallback to H323.
As you stated I guess it would really depends on the
severity of the MGCP failure for it to be worth it.


--- Jonathan Charles wrote:

> I am not seriously looking to DO anything... I am
> proposing an idea
> and seeing if it is viable.
> 
> The goal is maximum redundancy and to that end, I
> was thinking running
> MGCP and H.323 on the same gateway. If MGCP fails,
> go with H.323
> (while MGCP is active, all the H.323 commands are
> disabled anyway).
> 
> To implement this on the CCM side, I was going to
> put the gateways in
> the system twice, once as MGCP, once as H.323. Then
> create two
> route-groups, one for each and then list the MGCP
> first int he RL.
> 
> The theory seems sound, but will MGCP fail enough
> for it to go back
> into H.323 mode? Obviously, if MGCP is down from the
> CCM side, CCM
> will work its way down the route-list to the H.323
> entry and try that.
> But inbound calls may not be aware that MGCP has
> failed enough and
> won't try H.323 (as a guess... I am not sure if this
> is going to
> work).
> 
> 
> Jonathan
> 
> On 7/17/06, Ted Nugent 
> wrote:
> > I guess I did misunderstand part of the question
> > judging from the other responses... Can you just
> > clarify... you're looking to run both MGCP and
> H323 on
> > the same gateways? Both Protocols on the same
> gateway
> > on a seperate trunks? Or are you just looking at
> using
> > an MGCP gateway as primary and a second H323 as a
> > backup?
> >
> >
> > --- Jonathan Charles wrote:
> >
> > > So, I want to use MGCP as my primary gateway
> > > protocol and H.323 as a
> > > backup (no SRST, no remote sites).
> > >
> > > The plan is to add the gateways to CCM as H.323
> AND
> > > MGCP and have two
> > > route-groups, one for MGCP and one for H.323 and
> > > then combine them
> > > into a route-list with MGCP first.
> > >
> > > The problem is that I want to strip the 9 for
> MGCP
> > > (on the route-group
> > > or device) and not do so for H.323.
> > >
> > > First off, as a design is this retarded? Second,
> > > should I strip the 9
> > > on the gateway or change the H.323 dial-peers to
> not
> > > include the 9 and
> > > strip it on the route list?
> > >
> > >
> > >
> > >
> > > Jonathan
> > > _______________________________________________
> > > cisco-voip mailing list
> > > cisco-voip at puck.nether.net
> > >
> https://puck.nether.net/mailman/listinfo/cisco-voip
> > >
> >
> >
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