I have a customer wanting to upgrade 421 to 423 so they can perform a DMA to 7.12. It appears there is not a supported upgrade path from 421 to 423. To make things worse, there appears to be no upgrade path from 421 to any current version of CallManager.
I have come across this "blackhole" scenario before with an earlier version of 4.0. I was able to get a TAC engineer involved that found some cases where an upgrade path was performed, though not listed in the CUCM S/W Compatibility Matrix as a supported upgrade. TAC verified that they would support our upgrade given this situation.
Unfortunately, TAC is sayin for the upgrade from 4.2(1) to any version it is not supported.
So what gives, how can Cisco "blackhole" a customer and say they have to do a manual rebuild. There has to be an upgrade path....does anyone know if this is true? Will CUCM 8.X support this?
SIP traces provide key information in troubleshooting SIP Trunks, SIP
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Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
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CUCM Database Replication is an area in which Cisco customers and
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