[cisco-voip] isdn channels full message

[Brian Meade]

Ryan,

It's possible to do it but sometimes requires some reconfiguration.  H.323
gateways typically send back a user busy I believe when all of the
dial-peers run out of ports.  So you need to change CallManager service
parameter to keep routing on user busy or configure "no dial-peer outbound
status-check pots" on the gateway.

Brian

On Tue, Jun 23, 2015 at 3:27 PM, Ryan Huff <ryanhuff at outlook.com> wrote:

> Wes,
>
> I tried something like this before with h.323 (full disclosure, it was ccm
> 8.0.3) and the behavior I experienced was that on the busy out of the first
> gateway (the primary), call manager did not the recall the call and try the
> next member in the group, it just busied on the first h.323 gateway (using
> top-down). Sort of like a release to switch rather than a supervised
> transfer.
>
> Do you think I had something mis-configured (timers ... etc) or something?
>
> I want to lab this up tonight, cause it will solve a problem of mine if it
> works :). Thanks!
>
> Thanks,
>
> Ryan (the forever student)
>
>
> -------- Original Message --------
> From: "Wes Sisk (wsisk)" <wsisk at cisco.com>
> Sent: Tuesday, June 23, 2015 11:47 AM
> To: abbas wali <abbaseo at gmail.com>
> Subject: Re: [cisco-voip] isdn channels full message
> CC: cisco-voip at puck.nether.net,Ryan Huff <ryanhuff at outlook.com>
>
> not tested, theoretically sound, YMMV. No guarantees, warranties, etc.
>
>  use a route group with top down hunting. your real gateways are the
> first entries.
> last entry is an h323 gateway. the destination IP is the local CM. This is
> essentially a loopback going out/in the IP interface.
> Use the CSS for that gateway to match translation patterns that overwrite
> the called party number to be the DN that forwards to Voicemail. Also use a
> different egress CSS for the TP.
> Setup your VMail system to answer based on that redirect number and
> deliver whatever message you want.
>
>  -w
>
>   On Jun 23, 2015, at 9:15 AM, Ryan Huff <ryanhuff at outlook.com> wrote:
>
>  Ahhhhh okay ....
>
> Well, an easy way would be MGCP Gateways and route groups (and just mux
> the timers to get quick failover). With H.323 however, that is a bit more
> tricky because CCM knows nothing about the gateway or PRI's state, so if
> you could do anything, it would have to be in the gateway.
>
> You can use hunt groups in an h.323 IOS gateway to do this with multiple
> PRI's; you may be able to do this by having one of the peers in the hunt
> group kick the call back into CCM to a destination that forwards to
> voicemail.
>
> Thanks,
>
> Ryan
>
>
>  ------------------------------
> From: abbaseo at gmail.com
> To: ryanhuff at outlook.com; cisco-voip at puck.nether.net
> Subject: RE: [cisco-voip] isdn channels full message
> Date: Tue, 23 Jun 2015 13:55:42 +0100
>
>  Hi just to add it to.
>
>
> We need it only for the outbound direction.
>
>
>  *From:* Ryan Huff [mailto:ryanhuff at outlook.com <ryanhuff at outlook.com>]
> *Sent:* 23 June 2015 13:51
> *To:* abbas wali; cisco-voip at puck.nether.net
> *Subject:* RE: [cisco-voip] isdn channels full message
>
>
>  I don't believe so, at least not on the CPE side.
>
> The presence of all channels being busy would indicate that there aren't
> any channels available for the next call (or the next call after all
> channels are busy) to ring through the PRI for you to forward to voicemail,
> even if there were a way for you to act upon channel utilization.
>
> If you are trying to use conditional routing based on full PRI capacity,
> you'd probably have to work with your carrier and see if they can forward
> upon full channel utilization (they have the capability to do that, but
> will they is the question). However, they wouldn't be able to forward
> through the utilized PRI in that scenario, they'd have to forward to an
> alternate number.
>
> Thanks,
>
> Ryan
>  ------------------------------
>  From: abbaseo at gmail.com
> To: cisco-voip at puck.nether.net
> Date: Tue, 23 Jun 2015 11:38:55 +0100
> Subject: [cisco-voip] isdn channels full message
>  Hi  folks,
>
>
> CUCM 9 and H323 gateways with ISDN channels to PSTN. We want to redirect
> to VM when all the channels are full.
>
>
> Can CUCM do it or Dpeer?
>
>
> Thanks
>
>
>
> _______________________________________________ cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>    _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>
> _______________________________________________
> cisco-voip mailing list
> cisco-voip at puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://puck.nether.net/pipermail/cisco-voip/attachments/20150623/f430dab3/attachment.html>