The later version (11.0 – 11.2) of PCP have a fairly painful caveat when it comes to Unity Connection. CUC is currently afflicted by a(nother) horrid Informix… Read more “CSCux67499 – SQL NullPointer Exception causes CUC Subscriber Sync Failures”
Month: May 2016
CSCup36072 – CUCM/CUC Patch Upgrade Fails
Hit another horror defect today… Patch upgrades apparently do not work as of 10.5.x and up! The defect is described below: https://bst.cloudapps.cisco.com/bugsearch/bug/CSCup36072 The… Read more “CSCup36072 – CUCM/CUC Patch Upgrade Fails”
CSCug20588 – Auto-Reg Failure – “Could not insert new row – duplicate value in a UN”
Had an issue that’s affected multiple deployments that I’ve been working on. At one of my clients in particular, this reached an escalation level. Just sharing this… Read more “CSCug20588 – Auto-Reg Failure – “Could not insert new row – duplicate value in a UN””
Interpreting MGCP Debug Parameters
I manage a number of deployments that still feature ISDN extensively, so debug mgcp packet is something that I’m reading off IOS CLI on a fairly routine basis at… Read more “Interpreting MGCP Debug Parameters”
Cisco Meraki Managed Communciations MC74 IP Phone Released
Cisco Meraki have released a new cloud-managed phone. Gotta say I love the look of the elegant slim-line design. The key to this deployment model’s appeal can… Read more “Cisco Meraki Managed Communciations MC74 IP Phone Released”
CUBE URI-based Routing and Multiple Via Headers
Cisco introduced some pretty cool URI enhancements for CUBE from 15.4(1)T that have added some great extensions to the CUBE feature set, and specifically include some fine-grained SIP routing… Read more “CUBE URI-based Routing and Multiple Via Headers”
CUCM Video Codec Preferences Support – CSCuw53802
Colleague called me for assistance with a video call that wouldn’t set up when dialling in to a VC bridge. The call flow was from a Polycom… Read more “CUCM Video Codec Preferences Support – CSCuw53802”
Accessing the jabber-config.xml Jabber Configuration File
Often when working on Cisco Jabber installations, you will be required to edit an existing jabber-config.xml file to change client parameters or support new functionality, or simply as part… Read more “Accessing the jabber-config.xml Jabber Configuration File”
VoIP Bandwidth Calculations
If you’re preparing for a your CCIE Written or Lab exams, or (far more importantly) if you need to perform bandwidth sizing for a VoIP design or… Read more “VoIP Bandwidth Calculations”
RFC 5411 – And Other Guides to the SIP Galaxy
Given half a chance, I am always open to punt The SIP School as probably the best starting point for learning SIP out there. I took this course some… Read more “RFC 5411 – And Other Guides to the SIP Galaxy”
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