I have a CUCM server ver 6 with with 2 Voice GW. The protocol used is MGCP. We are planing to relocate the CUCM to a Data Cente. But the phones phones and the Voice GW will remain in the old locations. We are not plannig to change the IP addr of the CUCM instead we will change the Voice VLAN Network in the existing location.
In the above what all precautions should be taken ?.Will there be any issues changing the IP of Voice GW in CUCM to new IP range ?