Are you using Digitalk SBC?

Meet M4 SBC, the Digitalk SBC alternative for VoIP providers requiring a more affordable and user-friendly on-premise platform with advanced billing, routing, and reporting features to manage VoIP business efficiently.

Company focus

Kolmisoft	Digitalk
Kolmisoft focuses on a narrow niche: the development of MOR and M4 softswitches with in-built billing and routing functionality for small and mid-sized retail and wholesale providers that offer (or want to offer) VoIP services. This focus helps us cut distractions, develop stable and powerful softswitches, and maintain high-level technical support. The pricing is affordable for small and mid-sized providers. It is based on the number of concurrent calls and you are not limited in a traffic volume (minutes). The pricing starts at €315 EUR/month ($400 USD/month).	Digitalk offers a complete MVNE as a service platform for MVNOs and MNOs and Carrier Cloud platform for wholesale voice operators. Smaller providers might not be able to afford Digitalk. There is fixed monthly pricing + an additional per-minute fee if you exceed a certain amount of minutes. Digitalk SBC costs around €3000 EUR/month ($3396 USD/month) and if you exceed 18 million minutes per month, and you must pay €0.005 EUR/minute / $0.00566 USD/minute (if you terminate calls outside Digitalk network) or €0.0025 EUR/minute / $0.00283 USD/minute (if you terminate calls inside Digitalk network) fee for each additional minute.

Kolmisoft

Digitalk

Kolmisoft focuses on a narrow niche: the development of MOR and M4 softswitches with in-built billing and routing functionality for small and mid-sized retail and wholesale providers that offer (or want to offer) VoIP services.

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

The pricing is affordable for small and mid-sized providers. It is based on the number of concurrent calls and you are not limited in a traffic volume (minutes). The pricing starts at €315 EUR/month ($400 USD/month).

Digitalk offers a complete MVNE as a service platform for MVNOs and MNOs and Carrier Cloud platform for wholesale voice operators. Smaller providers might not be able to afford Digitalk.

There is fixed monthly pricing + an additional per-minute fee if you exceed a certain amount of minutes.

Digitalk SBC costs around €3000 EUR/month ($3396 USD/month) and if you exceed 18 million minutes per month, and you must pay €0.005 EUR/minute / $0.00566 USD/minute (if you terminate calls outside Digitalk network) or €0.0025 EUR/minute / $0.00283 USD/minute (if you terminate calls inside Digitalk network) fee for each additional minute.

User Authentication

M4 SBC	Digitalk SBC
IP authentication is a standard method in voice wholesale business, whereas username/password authentication is mandatory to serve a broader audience. M4 supports both username/password and IP authentication.	Digitalk supports only IP authentication, so you can’t use it if your clients require username/password authentication.

M4 SBC

Digitalk SBC

IP authentication is a standard method in voice wholesale business, whereas username/password authentication is mandatory to serve a broader audience. M4 supports both username/password and IP authentication.

Digitalk supports only IP authentication, so you can’t use it if your clients require username/password authentication.

On-premise vs Cloud vs Hosted

M4 SBC	Digitalk SBC
M4 is available on-premise (installation is done on your server) and as a hosted platform (Kolmisoft provides M4, installed on dedicated servers). This gives you more flexibility and more control.	Digitalk provides only a cloud platform, which means that you can’t install it on-premise. This way, you don’t have any control over the infrastructure and its location.

Wondering where to start?

Here are some useful resources:

Review the list of M4 features
Check the complete M4 documentation
See the hardware requirements and implementation examples
Try the online demo
Sign up for the Pilot project
Request pricing information

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