Customer has ccm 4.0(2a) cluster with 2 servers. Want to upgrade them to ccm 5.1x version on two new servers.
According to the software compatibility matrix at http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/compat/ccmcompmatr.xls, and other cisco documentation, I have a few questions:
(1) Can we directly upgrade 4.0(2a) to CCM 5.1(1) or CCM 5.1(2) instead of going to CCM 5.0(4x) as mentioned by cisco other document.
(2) On the above compatibility matrix, under version ccm4.0(2a), there is no compatibile DMA version can be installed on the publisher server, so which DMA version we can use?