Catharsis Managed IT’s Blog
Tips, news, and insights from the IT industry

Multiline calling in Microsoft Teams: A practical guide for IT administrators
Teams Phone has supported multiple assigned phone numbers for some time, but mobile users have had limited access to that functionality. A Microsoft 365 update that rolled out from late July through mid-August 2026 extends full multiline capability to Teams mobile on iOS and Android, bringing mobile users in line with the desktop experience. This

Stop reaching for the mouse: Save time with these Windows keyboard shortcuts
The time it takes to reach for a mouse, find the cursor, navigate to a button, and click adds up quickly across a workday. Luckily, Windows 10 and 11 include keyboard shortcuts that handle window snapping, taskbar navigation, and desktop management in a single keypress. Here are the ones worth committing to memory. Snap: Arrange

HTTPS, safe browsing, and what the padlock in your browser actually means
Most people have noticed the padlock symbol in a browser’s address bar, but few understand what it actually signals. It is not a general endorsement that a website is safe. It is a specific technical indicator: the connection between your browser and that website is encrypted. Understanding what that means, and where it reaches its

EHRs vs. paper records: Why the switch is worth it for healthcare practices
The shift from paper charts to electronic health records (EHRs) has reshaped how healthcare practices manage patient information, coordinate care, and meet regulatory requirements. For practices considering the switch or looking to understand the benefits of EHRs, the evidence is clear: EHRs deliver advantages that paper simply cannot replicate, even accounting for the complexity of

What an IT security audit covers and why your business needs one
Most organizations know their cybersecurity needs attention; fewer know where it falls short. An IT security audit closes that gap. By systematically evaluating networks, devices, applications, and security controls, an audit produces a clear picture of where vulnerabilities exist, how well current defenses are performing, and what needs to change. For businesses handling sensitive data

Practical cooling strategies for servers and computers in any office environment
Most IT failures attributed to “bad luck” have an underlying cause — and heat is one of the most common. Components that run consistently above their designed thermal range fail faster, throttle performance, and create compounding risks in environments where server uptime is critical. These strategies address the problem before it becomes an incident. What

What’s the difference between FXS and FXO? A plain-language guide for businesses
The terms FXS and FXO come up in almost every conversation about analog telephony and VoIP integration, but they’re rarely explained clearly. They’re not interchangeable, and confusing them during a phone system setup creates problems that can be difficult to troubleshoot after the fact. Here’s what each one does and why the distinction matters. The

How to use Excel slicers to filter data faster and more clearly
Anyone who has spent time wrangling a large dataset in Excel knows the frustration of dropdown filters that are slow to navigate and difficult to read at a glance. Slicers are Excel’s answer to that problem — a visual, button-based filtering interface that makes it faster to drill into the data you actually need, and

Number porting explained: What businesses need to know before switching providers
Switching to a new phone provider doesn’t have to mean starting over with new numbers. Number portability — the right to take your existing phone numbers with you when you change carriers — is a federal protection established by the Federal Communications Commission (FCC) and available to virtually all businesses. But knowing you can port

How to set up and manage shared mailboxes in Microsoft 365
A shared mailbox in Microsoft 365 lets multiple people send and receive email from a single address without any of them needing to log in separately or manage it as a personal inbox. When set up correctly, it’s an effective tool for managing shared communication. When set up incorrectly, however, it creates confusion, security exposure,
