--- title: Kolmisoft M4 SBC Reviews meta_title: 'Kolmisoft M4 SBC Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter reviews by the users' company size, role or industry to find out how Kolmisoft M4 SBC works for a business like yours. date_modified: '2026-09-22' parent_category: name: Collaboration & Productivity url: https://www.g2.com/categories/collaboration-productivity ---

Kolmisoft M4 SBC Reviews & Product Details

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.

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Kolmisoft M4 SBC Community

Overview by

Vilius Stanislovaitis (Chief Sales Officer at Kolmisoft, helping companies to grow VoIP business)

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