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CUCM SNMP Active Call Stats

So the title is a bit misleading but I figured it’s what most people will search if they want to get active call stats from their Cisco Unified Communications infrastructure – it’s certainly what I searched when I wanted to achieve the same thing. Turns out you can only get active call stats via SNMP from the Cisco Unified Border Element (CUBE).

I will show you how you can get the active incoming/outgoing and total external calls and how you can use these in PRTG to get a nice graph going of Active Calls Vs Bandwidth.

What you won’t see is the number of internal calls as we are only monitoring the CUBE. Internal calls don’t touch the CUBE and as far as my research went, the CUCM server doesn’t keep track of active calls… at least not without some manipulation of OIDs.

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Tech

The State of Telnet on the Internet – My Findings

This is my first in, I hope, a series of posts about the ‘state of things on the internet’ along with my findings and anything interesting I may have come across along the way.

This post will be about the state of Telnet (Port 23) on the internet from the perspective of a single internet-scanning host (read more in the methodologies section below). I’ll be going through some statistics including: top countries, top brands and/or firmware and lastly, an analysis on banner responses.

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PaperCut Real-Time Activity Dashboard

In this post I will walk you through setting up a PaperCut real-tine activity display for your office. Not only does it look good but it can also be very useful for staff on the service desk who may be dealing with printer issues/queries.

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Tech

Office 2016 Network Shortcuts Save Issue

This is a quick post to help sysadmins facing save issues with Microsoft Office 2016 – specifically the action of saving to the Documents folder and being redirected to Network Shortcuts instead. This issue may be present in Office 2013 too but it’s not what I have deployed in my environment so cannot say for sure if the same symptoms occur on 2013.

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Duo Security IP Address Range

Here are the IP ranges used by Duo Security for authentication purposes – list correct as of September 2016. Duo don’t make this list public (security through obscurity?) but they do give it to customers on request so here they are: