If you want to upgrade from 7 to 8.6 you need to install a .cop file.
For both restricted and unrestricted upgrades from an 8.5(x) or earlier release to an 8.6(x) release, this patch (COP file) must be applied prior to initiating the upgrade. Before you upgrade from compatible versions of Unified CM, install the COP file named ciscocm.refresh_upgrade_v1.0.cop.sgn that you can find under:
I'm not able to access my old voice mail messages all of a sudden. The recording says something like 'the message is currently not available'. This has never happened before in all the years I have been using this system. I have t...
If you have 2 ISR routers, one acting as Failover, do we need to have both the same number of SRST licenses on the 2 routers?
No. You will only need the SRST licenses on the primary router. Because this feature...
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