# Kolmisoft M4 SBC Reviews
**Vendor:** Kolmisoft  
**Category:** [VoIP Providers](https://www.g2.com/categories/voip-providers)
## About Kolmisoft M4 SBC
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.






- [View Kolmisoft M4 SBC pricing details and edition comparison](https://www.g2.com/products/kolmisoft-m4-sbc/reviews?section=pricing&secure%5Bexpires_at%5D=2026-05-15+03%3A12%3A09+-0500&secure%5Bsession_id%5D=688d1f8e-aa99-4d90-b22a-ee85a16be28d&secure%5Btoken%5D=f2ee55f8d06e6d4c61af8894ecc63028d17b3840e85001387e20b6668d3b216d&format=llm_user)

## Kolmisoft M4 SBC Features
**Platform Basics - VoIP Providers**
- PBX systems, VoIP Softphone
- Call Management
- Network monitoring
- Integrations
- Virtual PBX
- SIP trunking services

**Basic Communication**
- Phone Calls
- Video Calls
- Instant Messaging
- Screen Sharing
- Conference Calls
- Desk-to-Desk Calls

**Agentic AI - VoIP Providers**
- Autonomous Task Execution
- Cross-system Integration
- Adaptive Learning
- Proactive Assistance

**Access**
- Software Pairing
- Browser Extension
- Individual Download

**Advanced Features**
- Hold Music
- Automated Attendants
- VOiP Number

## Top Kolmisoft M4 SBC Alternatives
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