AAR over RSVP CAC

AAR over RSVP CAC

2001 (HQ Ph1) dials 4001 (Branch 2 Ph 1) or vice versa

1. Enable AAR globally from the Service Parameters
2. Configure 1 AAR Group called AAR_General with prefix 9
3. Make sure EPNM is configured for both phones
a. HQ_PH: +14082022XXX
b. SC_PH: +85224044XXX

Now since the AAR Group Prefix is 9, this will be prepended to the EPNM when the call is re-routed due to network
congestion, so next step create a Route Pattern to dial this new modified EPNM.

Route Pattern on CUCM

9\+.85224044XXX (this will be dialed by HQ PH)

Choose RL with Standard Local Route Group and modify the called number as "NANP:PreDot" since HQ Phones can
dial Intl numbers without any leading digits (011), add this route pattern to a partition PT_HQ_AAR and this partition
should be added to a CSS CSS_AAR_HQ and this CCS should be added to each HQPH under the AAR CSS along with
the AAR Group (don’t forget to add the AAR group under the line as well)

9\+.14082022XXX (this will be dialed by SC PH)

1. Choose the standard local route group (or otherwise just the gateway) and add a route list with the NANP
Predot and prepend 900 as SC is h323 and the dial-peer in the SC Gateway would be 900T
2. Add this route pattern to a partition PT_AAR_SC and to a CSS CSS_AAR_SC and assign this CSS to the AAR
CSS For SC Phones along with the AAR Group (under the line as well).
3. Go to the location settings and from HQ to SC (this relationship) set the RSVP to mandatory and similarly
from SC to HQ as well...
4. Configure one MTP hardware resource on the HQ and SC Router and register it to CUCM and assign them
respectively to the MRGL on the phones....