Two reasons. First, normally a gateway can't call out (to prevent loops).
Second, if a call is to a remote site and gets forwarded to vmail but there is no bw it needs to go back out... Jonathan On Thu, Apr 17, 2008 at 6:50 AM, Juan Lopez Hernandez -X (jlopezhe - IBM - INS at Cisco) <[EMAIL PROTECTED]> wrote: > I'm missing the point why we need the AAR CSS and AAR group on the > remote GW for redirected calls? > > Cheers, > Juan > > > -----Original Message----- > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] On Behalf Of Jonathan > Charles > Sent: Wednesday, April 16, 2008 10:43 PM > To: [EMAIL PROTECTED] > > > Cc: CCIE Voice > Subject: Re: [OSL | CCIE_Voice] Dial Plan design question, AAR with > vmail... > > That makes sense... > > Now, what about when a GK denies the call to insufficient bandwidth? > > The only thing I can think of is to put an H.323 gateway second the > route-list for the GK-controlled trunk (from CCM) and turn off the stop > hunting on unallocated/busy/etc... > > > > Jonathan > > On Wed, Apr 16, 2008 at 3:12 PM, Vik Malhi <[EMAIL PROTECTED]> wrote: > > AAR cannot be "down" and AAR can't deny a call. Your entire > > CallManager cluster is either unavailable (SRST is the solution) or > > it is available (AAR being the solution when the WAN is saturated). > > If CallManager is active and alive then AAR cannot fail unless off > > course it is misconfigured or you are out of B-channels on your PSTN > connection. > > > > Assuming the CallManager is operational and the remote sites phones > > and gateway are still registered then AAR is the solution for when > > Locations CAC blocks the call. So on the remote phon you hit the > > "Messages" button and CallManager determines there is no Locations > > bandwidth available. The External Number Mask and AAR Group needs to > > be configured on the Hunt Pilot for Voicemail. The AAR CSS and AAR > > Group needs to be configured on the calling (remote) phone. Also in > > the case of a Call Forward from the remote phone, the remote gateway > > needs an AAR CSS and AAR Group (+Redirecting # outbound). > > > > Assuming the CallManager is not available (WAN outage) then SRST is > > your only option. Nothing on CallManager works including AAR. > > > > > > > > Vik Malhi - CCIE #13890 > > Senior Technical Instructor - IPexpert, Inc. > > > > Telephone: +1.810.326.1444 > > Fax: +1.810.454.0130 > > Mailto: [EMAIL PROTECTED] > > > > Join our free online support and peer group communities: > > http://www.IPexpert.com/communities > > > > IPexpert - The Global Leader in Self-Study, Classroom-Based, > > Video-On-Demand and Audio Certification Training Tools for the Cisco > > CCIE R&S Lab, CCIE Security Lab, CCIE Service Provider Lab , CCIE > > Voice Lab and CCIE Storage Lab Certifications. > > > > > > -----Original Message----- > > From: Jonathan Charles [mailto:[EMAIL PROTECTED] > > > > > > Sent: Wednesday, April 16, 2008 1:01 PM > > To: [EMAIL PROTECTED] > > Cc: Onur Tufekci; CCIE Voice > > Subject: Re: [OSL | CCIE_Voice] Dial Plan design question, AAR with > vmail... > > > > what I meant was SRST config to reroute the call if AAR is down... > > > > So, if I am at the remote site, AAR is denying calls and I hit the > > messages button, what are my options? > > > > > > > > Jonathan > > > > On Wed, Apr 16, 2008 at 2:57 PM, Vik Malhi <[EMAIL PROTECTED]> > wrote: > > > You can configure both- but only one of AAR and SRST will be active > > > at > any one point. When the WAN is saturated signaling still > > traverses > the WAN. When there is a WAN outage then you lose > > signaling to the > remote sites and SRST kicks in. From your > > original question you > indicate that SRST might be a solution for > AAR which it isn't. > > > > > > > > > > > > Vik Malhi - CCIE #13890 > > > Senior Technical Instructor - IPexpert, Inc. > > > > > > Telephone: +1.810.326.1444 > > > Fax: +1.810.454.0130 > > > Mailto: [EMAIL PROTECTED] > > > > > > Join our free online support and peer group communities: > > > http://www.IPexpert.com/communities > > > > > > IPexpert - The Global Leader in Self-Study, Classroom-Based, > > > Video-On-Demand and Audio Certification Training Tools for the Cisco > > > > CCIE R&S Lab, CCIE Security Lab, CCIE Service Provider Lab , CCIE > > > Voice Lab and CCIE Storage Lab Certifications. > > > > > > > > > > > > > > > -----Original Message----- > > > From: Jonathan Charles [mailto:[EMAIL PROTECTED] > Sent: > > Wednesday, April 16, 2008 12:41 PM > To: [EMAIL PROTECTED] > Cc: > > > Onur Tufekci; CCIE Voice > Subject: Re: [OSL | CCIE_Voice] Dial Plan > > > design question, AAR with vmail... > > > > > > Well the goal is two-fold. > > > > > > First, if the WAN is saturated, someone at HQ, should be able to > > call > BR2 via the PSTN (using AAR), and a CFNA/CFB should route > > back to > vmail and the correct box > > In the event of a WAN > > outage, the phones in SRST should also CFNA/CFB > to voicemail and > > the correct box > > > > > Jonathan > > On Wed, Apr 16, 2008 > > at 2:23 PM, Vik Malhi <[EMAIL PROTECTED]> wrote: > > > > > > > > > > > > Good point- AAR requires you to configure an AAR CSS, AAR Group > > on > the > remote site gateway in addition to checking the > > Redirecting > Number > Outbound checkbox (if this is MGCP then no > > mgcp/mgcp on the > IOS). You > need to check the Redirecting Number > > Inbound checkbox on > the HQ > gateway. You also need an external > > number mask and aar group > on the > hunt pilot. It should work a > > treat having done this. The > Redirecting > Number is good since CCM > > > builds this in the case of > AAR. Only SRST > needs a workaround > > solution to get the caller to hear subscriber greeting. > > > > > > > > The SRST solution was outlined in a previous email. > > > > > > > > Don't overlap the two questions/solutions since they are > > mutually > exclusive. > > > > > > > > > > > > > > > > Vik Malhi - CCIE #13890 > > > > Senior Technical Instructor - IPexpert, Inc. > > > > > > > > Telephone: +1.810.326.1444 > > > > Fax: +1.810.454.0130 > > > > Mailto: [EMAIL PROTECTED] > > > > > > > > Join our free online support and peer group communities: > > > > http://www.IPexpert.com/communities > > > > > > > > IPexpert - The Global Leader in Self-Study, Classroom-Based, > > > > > Video-On-Demand and Audio Certification Training Tools for the Cisco > > > > > CCIE R&S Lab, CCIE Security Lab, CCIE Service Provider Lab , CCIE > > > > > Voice Lab and CCIE Storage Lab Certifications. > > > > > > > > > > > > ________________________________ > > From: > > [EMAIL PROTECTED] > > > > [mailto:[EMAIL PROTECTED] On Behalf Of > > Onur > > Tufekci > Sent: Wednesday, April 16, 2008 12:12 PM > > > To: > > > Jonathan Charles > Cc: CCIE Voice > Subject: Re: [OSL | > > CCIE_Voice] > Dial Plan design question, AAR with vmail... > > > > > > > > > > > > > > > > Are you trying to configure only AAR or only SRST? > > > > > > > > > > > > On Wed, Apr 16, 2008 at 2:03 PM, Jonathan Charles > > > <[EMAIL PROTECTED]> > wrote: > > > > > > > > > OK, so AAR kicks in and I forward the call to the PSTN, the > > user > I > > was dialing does not answer and the call should forward > to vmail... > > > > > how would we make this work? voicemail under srst config? > > > > > > > > > > > > > > > > > > > > Jonathan > > > > > > > > > > > > > > > > > > > > > > > >
