Thanks Amit but unfortunately this will not work. As I mentioned before, the RTP stream is being interrupted too. H323 call preservation, in my opinion, is only for signaling loss to the Call Manager only, but here the IP Phones are temporarily losing connectivity to the GW too which will interrupt the RTP stream.
On Tue, May 31, 2011 at 7:54 PM, amit batra <batraji...@yahoo.com> wrote: > try this > > http://ccieash.wordpress.com/2010/06/25/h323-call-preservation/ > > might help you... > > --- On *Wed, 6/1/11, CCIE Voice <ccievoicelab.c...@gmail.com>* wrote: > > > From: CCIE Voice <ccievoicelab.c...@gmail.com> > Subject: Re: [OSL | CCIE_Voice] Call Preservation Issue > To: "amit batra" <batraji...@yahoo.com> > Cc: ccie_voice@onlinestudylist.com > Date: Wednesday, June 1, 2011, 4:34 AM > > > Sorry, should have been more clear. Using H.323. > > The call preservation feature of H323 applies when the gateway loses > connectivity to Call Manager only, so that the RTP stream is preserved to > the phone, but here the RTP stream itself is being interrupted. > > > On May 31, 2011, at 6:58 PM, amit batra > <batraji...@yahoo.com<http://mc/compose?to=batraji...@yahoo.com>> > wrote: > > What type of protocol you are using ? H323 or MGCP ? > > With MGCP i dont think if there is any way .. > > H323 can preserve call .. > > --- On *Wed, 6/1/11, CCIE VOICE > <ccievoicelab.c...@gmail.com<http://mc/compose?to=ccievoicelab.c...@gmail.com> > >* wrote: > > > From: CCIE VOICE > <ccievoicelab.c...@gmail.com<http://mc/compose?to=ccievoicelab.c...@gmail.com> > > > Subject: [OSL | CCIE_Voice] Call Preservation Issue > To: <http://mc/compose?to=ccie_voice@onlinestudylist.com> > ccie_voice@onlinestudylist.com<http://mc/compose?to=ccie_voice@onlinestudylist.com> > Date: Wednesday, June 1, 2011, 3:03 AM > > Hello Experts > > An interesting problem to solve for which I'm having a hard time figuring > out the solution myself. > > We have a Call Manager node and IP Phones in one location and ingress voice > gateways in other location. Both locations are connected over redundant WAN > links. When one WAN link fails, it takes upto 5 seconds for the redundant > WAN link to kick in. Issue is, if there is an active call between the > gateway and the IP Phone, the call simply drops when a WAN issue occurs. Is > there a way to preserve the RTP stream on the GW itself that can be resumed > once the redundant WAN link takes over? > > Any input is appreciated! > > -----Inline Attachment Follows----- > > _______________________________________________ > For more information regarding industry leading CCIE Lab training, please > visit <http://www.ipexpert.com>www.ipexpert.com > > Are you a CCNP or CCIE and looking for a job? Check out > <http://www.PlatinumPlacement.com>www.PlatinumPlacement.com > >
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com Are you a CCNP or CCIE and looking for a job? Check out www.PlatinumPlacement.com
