Blog

Practical guides on VoIP softswitch technology — routing, billing, monitoring, and security.

Telecom Industry Concepts: IXC, Softswitch, LCR & Billing

From interexchange carriers and LATAs to softswitches, LCR, and CDRs — the essential telecom industry concepts every VoIP operator should know.

What a softswitch is, how it works, Class 4 vs Class 5, the features that matter, and how to choose the right VoIP softswitch in 2026.

Wholesale transit vs retail subscriber services — how Class 4 and Class 5 softswitches differ and when operators need both.

How LCR picks termination routes on a softswitch, what data you need, and how to protect margin without sacrificing ASR.

CDR-based billing, prepaid and postpaid models, rate management, and the reports carriers need on a VoIP softswitch.

Toll fraud, FAS, and SIP attacks — how to limit losses with routing controls, blacklists, monitoring, and route testing.