September 4, 2026
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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… Continue reading What’s the difference between FXS and FXO? A plain-language guide for businesses
