Licensing that grows with your deployment.
Two clear dimensions: where VoipSDK runs and how many calls it carries at once. No per-seat surprises, no royalties per minute.
Each IP address that hosts a VoipSDK SIP stack: a PBX node, an IVR host or an application server. Add addresses as you scale out.
The peak number of calls in progress at the same moment. Size it from your busiest hour, and raise it when your traffic grows.
From footprint to production in three steps.
Tell us your footprint
How many IP addresses you will deploy on, your peak concurrent calls and what you are building.
Receive your quote
We reply with a licence sized to your deployment, including white-label softphone builds if you need them.
Build and deploy
Integrate the packages, ship your server or softphone, and extend your licence as you grow.
Request a quote
Tell us about your deployment. Choosing Prepare request opens your email app with everything filled in, addressed to info@dialtone.co.za.
Licensing FAQ
What counts as an IP address?
Each IP address that hosts a VoipSDK SIP stack. A cluster of three PBX nodes needs three; a single server needs one.
What counts as a concurrent call?
The highest number of calls in progress at the same moment across your licensed IP addresses. Size it from your busiest hour.
Can I grow my licence later?
Yes. Add IP addresses or concurrent calls as your deployment grows, and we update your licence.
Can I sell a softphone under my own brand?
Yes. The softphone is built for white-labelling: your name, icon, colours, provisioned server and installer. Mention it in your request.
Which platforms are supported?
.NET 8, 9 and 10. Windows audio is built in; on other hosts you supply an audio backend or run headless. See the platform page.