Upgrading CUCM 6.1.3 to 8.6

[jvalderrama]

Can I upgrade directly from 6.1.3 to 8.6, or is there an previous upgrade I need to do?..

Thaks,

José Valderrama

[Jaime Valencia]

There's an IP Telephony FAQ which answers your question

Announcement:                         IP Telephony FAQs and Basics - Please read before  posting!

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Cisco  Unified Communications Manager (CallManager) Frequently Asked Questions

https://supportforums.cisco.com/docs/DOC-13450

HTH

java

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www.cisco.com/go/pdihelpdesk