Are you using Sipwise?

Meet Kolmisoft, the Sipwise alternative for VoIP providers that look for a more simple and affordable Class 4/5 Softswitch with in-built billing and routing features.


Company focus

Kolmisoft Sipwise
Kolmisoft focuses on a narrow niche: the development of MOR and M4 softswitches with in-built billing and routing functionality.

This focus helps us cut distractions, develop stable and powerful softswitches, and maintain high-level technical support.

Sipwise focus is on the design, development and integration of carrier-grade, next-generation communication Voice over IP platforms (VoIP).

Sipwise offers Class 5 and Class 4 Softswitch solutions with Cloud PBX, WebRTC and mobile App modules.



Kolmisoft Sipwise
Kolmisoft softswitches are designed for small and medium-sized VoIP providers that need a robust Class 4/5 Softswitch, with billing and routing functions at a fair price. Sipwise is designed for telecom service providers that can allocate comparably higher budgets (€30,000 EUR or more) to their softswitch infrastructure.


Wondering where to start?

Here are some useful resources:

Still have questions? Contact us and we’ll be glad to assist!