Cloud UCaaS & network engineering — documented by someone who deploys it for a living.
Who’s Behind This Site
SystemStackHQ is written and maintained by a working VoIP Lead and Network Engineer with hands-on daily experience designing and deploying cloud calling infrastructure for real customers.
This isn’t a content farm, a vendor-sponsored resource, or a site run by someone who read the documentation once. Every guide published here comes from actual production deployments — the kind where something goes wrong at 4pm on a Friday and you figure out why.
Current Role
VoIP Lead & Network Engineer
Focus
Cloud UCaaS Deployments
Primary Platforms
Teams Calling · Webex Calling
Based In
United States
What I Work With Daily
Microsoft Teams Calling | Cisco Webex Calling | Operator Connect | Direct Routing | Cisco Control Hub | Enterprise Networking | QoS & VoIP | SIP / VoIP
Why SystemStackHQ Exists
If you’ve ever tried to deploy Teams Calling from Microsoft’s documentation, you know the problem. The information exists — but it’s scattered across dozens of pages, written for multiple different audiences, frequently contradicts itself, and assumes you already know things it never explains.
Webex is the same story. Cisco’s documentation for Control Hub, PSTN options, and number management is fragmented across help articles, admin guides, and community threads in ways that make simple tasks feel complicated.
SystemStackHQ exists to fix that. Every article is a consolidated, production-tested guide written from the operator’s seat — not the product marketing team’s desk.
The Standard Here
“If I had this page the first time I deployed this, it would have saved me two hours.” That’s the bar every piece of content on this site is held to.
What You’ll Find Here
Teams Calling guides — licensing templates, Operator Connect, Direct Routing, dial plans, auto attendants, number porting, and everything in between. Written for the engineer doing the deployment, not the salesperson quoting it.
Webex Calling guides — cloud deployment walkthroughs, Control Hub configuration, hunt groups, PSTN options, and number management. The stuff that’s spread across six Cisco help articles condensed into one place.
Networking — QoS, VLANs, firewall rules, split tunneling, and network readiness for UCaaS. Because most Teams and Webex problems are actually network problems in disguise.
Browser tools — free calculators and reference tools for everyday tasks: CDR calculations, bandwidth planning, dial plan testing. No login required, no data collected, everything runs in your browser.
Get in Touch
Found an error? Have a topic you’d like covered? Reach out via the contact page. Corrections and suggestions are always welcome — keeping content accurate matters here.
Disclosure: SystemStackHQ.com is an independent site. It is not affiliated with or endorsed by Microsoft, Cisco, or any other vendor. Some links on this site may be affiliate links — if you make a purchase through one, we may earn a small commission at no extra cost to you. The site may also display third-party advertising. Neither affiliate relationships nor advertising influence the technical content published here.