M4 SBC is a Class 4 Softswitch with in-built billing, intelligent routing, DID management, and switching (transcoding) functionality. Telecommunication service providers use M4 to grow their voice business by automating their key operations, such as billing, routing, rate management, reporting, invoicing, and integrations through API. M4 can be used for these business models: SIP trunking, call origination and termination, wholesale transit, A-Z routes, and selling CC (call center) traffic. When users leave Kolmisoft M4 SBC reviews, G2 also collects common questions about the day-to-day use of Kolmisoft M4 SBC. These questions are then answered by our community of 850k professionals. Submit your question below and join in on the G2 Discussion.

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