-remote destination number=4162223333
-desk phone extension=4694
1) dial to MVA DID number w/ani=4162223333
2) gateway deliver the call to CUCM via SIP trunk
3) CUCM sends back the call to gateway via h323
4) gateway receiving the call from CUCM with ani=4694. ANI is not match to remote destination so always asking the RDN even dial from the cell which is belong to RDN.
CUCM translates the ANI to desk phone's when the call return to gateway via h323. How to keep the original ANI informatoin(4162223333) in MVA hairpining environment?
Thanks in advance,