You answered your own question. Both DNs are registered to CUCM and are in partitions that the other's CSS can see. The signaling is between each phone and UCM. The media is built directly phone to phone. If CAC failed the call setup, then AAR could be invoked to use the PSTN. Since CAC allows the call, the gateways aren't involved in the call (other than providing IP network connectivity.)
DQ d...@cisco.com Sent from my iPhone On Jun 11, 2012, at 2:52 PM, "Krishna" <vinayak_...@yahoo.com> wrote: > Hi folks, > > I couldn't understand the call flow between HQ and BR1 which are > provisioned/registed in the cucm. here is the detail structure: > > HQ-phone1 -5002 > css-hq-international > pt-pt-internal > > BR1-phone1-1002 > css-br1-ld > pt-pt-internal > > Both phones are residing in the partition pt-internal, and br1 is a mgcp site > and whereas the hq is the h323 site. when i call 1002 from 5002 or vice versa > the call works fine, but when i enable deb isdn q931 or deb voip dialp, i > dont see anything. Whereas when i enable RSVP based CAC, i can see the traces > with the show sccp connections. > > could any one help me out how the calls are working in between these two. is > it because the phones are registered to cucm, but logically in a different > device pool and therefore it routes directly on cucm???? your help is much > appreciated. > > Thank you. > > Krishna. > _______________________________________________ > 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
_______________________________________________ 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
