A curated library of 40 articles, architectural perspectives, and engineering guides—combining executive thought leadership from LinkedIn with the complete technical archive from colla.blog—covering AI strategy, enterprise systems thinking, Zoom Phone & Rooms, Cisco CUCM, SIP/VoIP security, and E911 compliance.
How I replaced disconnected sticky notes, OneNote pages, and task lists with an interconnected, relational Notion knowledgebase built around how an engineer's brain actually works.
An architectural deep dive into Zoom Phone PSTN and hybrid connectivity models—Native Zoom Phone, BYOC-C (Cloud Peering), BYOC-P (Premises SBC), and BYOP-P (Premises PBX)—evaluated across E911, local survivability (ZPLS), and advanced call routing.
Why preparing, documenting, and teaching technical concepts to others is one of the most effective ways to expose knowledge gaps, master fundamentals, and grow from engineer to technical leader.
Making the mindset shift from reactive firefighting to proactive systems architecture: eliminating 'good enough' technical debt, designing for multi-year scale, and building trusted engineering frameworks.
Why the web is evolving from human-browsed pages to an agentic, machine-readable service layer—and how IT and business leaders can prepare with structured data (JSON-LD), llms.txt, APIs, and cryptographic provenance.
Why enterprise Unified Communications infrastructure is frequently overlooked by security teams—and a practical hardening blueprint covering SIPS/TLS, SRTP, SBC access control, toll-fraud prevention, and SIEM visibility.
Why the real question in IT isn't whether AI will replace humans—it's whether an engineer or architect using AI as a force multiplier will deliver twice the value in half the time.
An architectural and operational evaluation of Zoom Workplace vs. Microsoft Teams across licensing transparency, cross-platform interoperability, webinar scale, native voice/SMS/fax, contact center, and product velocity.
How cloud Zero-Touch Provisioning (ZTP) replaces legacy DHCP Option 66/150 staging and on-premises TFTP servers—enabling secure, vendor-neutral plug-and-play voice deployments across offices and remote homes.
Cutting through vendor FUD around Kari's Law and the RAY BAUM's Act: understanding the federal feasibility and reasonable-cost clauses (47 CFR Part 9) and designing pragmatic dispatchable-location architectures.
Why speed tests can look great while Zoom, Teams, or Jabber calls chop and freeze—a protocol-level breakdown of TCP vs. UDP real-time media and why half-duplex Wi-Fi repeaters sabotage voice and video.
A practical field guide to Regular Expressions (RegEx) for IT and Unified Communications engineers—covering metacharacters, character classes, quantifiers, capture groups, and real-world PBX dial plan and log-analysis patterns.
Video walkthrough and practical guide for IT and Unified Communications engineers on joining datasets across multiple sources in Excel using VLOOKUP and IFERROR.
In this video, we'll be discussing Zoom Phone Local Survivability, a feature that can provide a solution for businesses with critical communication requirements....
The Poly CCX 700 Zoom Phone is the perfect high end Zoom Phone appliance for the high end and high demand users in your organization. It's beautiful Zoom...
Zoom Mesh is a new eCDN offering from Zoom that will save your reputation as well as your bandwidth. What is an eCDN and how does this affect you? Watch this...
Wireless Sharing has never been easier in conference rooms with Zoom Rooms Direct Share with Proximity Detection. This amazing wireless share technology makes it...
Ever wonder why your call showed up as spam, scam, or some random name when calling someone? As a telecom engineer I dove into this topic and wanted to share...
When you need to join a Zoom meeting, but either can't or don't want to open the app and mess with it, Zoom Personal Audio Conference is a perfect solution. It's...
Text To Speech with the Microsoft Azure Audio Content Creation Tool — Technical walkthrough and video guide by Jaron Davis covering Microsoft Teams for...
Impress in Zoom with Warmly! — Technical walkthrough and video guide by Jaron Davis covering Zoom for enterprise collaboration environments.
I started looking around and found nobody maintains a list like this. It can be extremely difficult to set up dialing plans when opening an office in a new...
Introduction Every UC administrator has a set of reports that they often commonly as an part of interaction with the business. These templates are generally CDR...
Introduction Occasionally there are issues with CUCM CDR that causes CUCM to not provide CDR records to your call reporting/accounting software or even to your...
Explanation The Zoom Meeting Connector server is an on-premise server that allows you to host your meetings from your own network, making meetings more secure,...
CCNP Collaboration Study Series Domain:4 – Call Control Sections Covered:4.1 – Describe the Cisco Unified Communications Manager digit analysis process4.3 –...
How to harden Cisco Expressway-E and Expressway-C Mobile and Remote Access (MRA) deployments against international SIP toll fraud using Local CPL Call Policy rules and regular expressions.
Solving side-by-side agent training on Cisco 8800 Series SIP IP phones where legacy SCCP handset monitoring is no longer supported.
Step-by-step guide to modifying outbound SIP INVITE Contact and P-Asserted-Identity headers on Cisco IOS XE CUBE routers using voice class sip-profiles and regex capture groups.
Configuring Survivable Remote Site Telephony (SRST) for Cisco 8800 Series SIP phones on Cisco 4400 Series ISR voice gateways using voice register global, voice register pool, and PLAR.
How to build, apply, and test Cisco IOS XE voice translation-rules and voice translation-profiles on CUBE dial-peers to normalize 4-digit internal extensions into 10-digit NANP caller IDs.
Quick guide on generating a Cisco Jabber Problem Reporting Tool (PRT) bundle and inspecting DiagnosticsContent.html and DNS SRV records to diagnose service discovery failures.
Far too often I need to search for phones or extensions based on a criteria that CUCM doesn’t provide a way to search for. This could be the DN associated to an...
Earlier today I was asked by a coworker to assist with a new fax server. They needed a SIP trunk set up and after getting everything up and running, I...
Key Terminology VOIP: Voice over Internet Protocol PBX: Private Branch Exchange PSTN: Public Switched Telephony Network ITSP: Internet Telephony Service Provider...
This document is just a basic overview of how Informacast works. This is not an in-depth analysis, but should be able to provide a basic understanding of how the...
The basics A few days ago, on July 17th, 2020, the Federal Communications Commission published a new order, FCC 20-100, requiring all phone providers implement...
Introduction Fax over IP (FoIP) is a topic that most collaboration engineers hate. And when I say hate, I don’t mean they just dislike it, they HATE it with the...
Note: This isn’t a configuration guide to Standard Local Route Groups in your CUCM. This is really more of a document to help you understand how it works. If...
About a year ago I compared and contrasted different SFTP options for backing up your Cisco Collaboration Infrastructure. At some point after that I learned that...
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