Unable to install Cisco UCCE 9 Maintenance Release

Background: Over the past 6-9 months we have been planning for our Technology Refresh migration from Cisco Unified Contact Center Enterprise version 8.5 to version 9.0. This is both an upgrade and a hardware refresh to virtualized servers. The upgrade is being done to maintain software currency (in the Cisco Collaboration application space you should always know when your next upgrade is planned) as well as allow us to upgrade our CUCM cluster to version 9.X. We also want to eliminate our legacy Cisco MCS servers and migrate everything to virtual servers. Continue reading

Fragmented UDP SIP packets causing “dead air”

This is the first in a series of (long overdue) posts related to odd bugs and behavior experienced in the Cisco Unified Border Element (CUBE) which is built into Cisco IOS. I will spare you all the details, but high level our environment looks like this:

  • Cisco Unified Communications Manager (CUCM) – multisite deployment with centralized call processing with geographical diversity
  • Contact Center – Cisco CVP including Call StudioUCCE, Nuance ASR/TTS, Cisco Unified Presence Server (SIP Proxy)
  • SIP Trunks with CUBE for Local/Long-Distance and Inbound Toll-Free

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