Hosted Softswitch Costs & Pricing Models (2026)

Last updated: September 2026

Hosted Softswitch Cost at a Glance (2026)

A hosted softswitch is billed as software-as-a-service: monthly license per concurrent port or per subscriber, plus optional SIP trunking and support. There is no server hardware to buy; you pay for the platform and usage. Total cost depends on Class 4 vs Class 5 features, port count, and uptime SLA. See the hosted softswitch platform for the product lineup.

Pricing Models in the Market

Monthly License per Port

The most common model: you pay a monthly fee per concurrent port. A carrier running 500 concurrent ports pays port-count times the license. This model scales linearly and is easy to budget.

Per-Subscriber / Per-Line

Some providers bill per registered subscriber or per DID package — common for Class 5 and PBX-style deployments where subscriber count matters more than concurrent ports.

Flat SaaS with Feature Tiers

Entry, growth and carrier tiers bundle features (billing, LCR, SBC, API). You choose a tier and add usage. Good for predictable costs.

What’s Included (and What Isn’t)

Hosted platforms bundle the softswitch core, SIP stack, monitoring and updates. Separately priced items typically include: SIP trunking minutes, SBC, billing system, DID inventory, and professional onboarding. Ask which of these your license actually covers.

Class 4 vs Class 5 Cost Drivers

Class 4 switching (trunk-to-trunk wholesale) is priced per port and dominates carrier spend. Class 5 adds subscriber features — DIDs, extensions, voicemail — which raise per-subscriber cost for enterprise fleets. Review which features match your traffic before choosing a license.

Hidden Costs to Budget

Onboarding and migration, API integration, extra support tiers, and per-number DID fees catch buyers by surprise. A realistic TCO includes one-time setup plus 12 months of license, trunking and support. Compare hosted softswitch platforms side by side.

How to Reduce TCO

(1) Right-size ports to your peak concurrency. (2) Negotiate annual prepay discounts. (3) Reuse your existing SBC/billing instead of buying platform extras. (4) Read the softswitch explainer to avoid paying for features you don’t need.

Frequently Asked Questions

How much does a hosted softswitch cost per month?

Hosted softswitch pricing is per concurrent port or per subscriber, licensed monthly. Total monthly spend is port count times the per-port license plus optional SIP trunking and support. Enterprise free-trial and annual plans are negotiated with the provider.

Why do Class 5 softswitches cost more than Class 4?

Class 5 adds subscriber-facing features — DIDs, extensions, voicemail, call control — which require more platform capability and support than Class 4 trunk switching. You only pay for those features when your traffic needs them.

Does a hosted softswitch include the billing system?

Sometimes. Some platforms bundle billing; others sell it as a separate module. Confirm what your license includes before comparing prices, since a separate billing license changes the total cost.

Can I switch to a hosted softswitch without buying SBC hardware?

Yes. Many hosted platforms include or integrate an SBC as part of the service, so you avoid owning SBC hardware. Verify the provider’s SBC model and capacity against your peak traffic.

What affects the total cost of ownership for a softswitch?

License, trunking minutes, SBC, billing, onboarding, DID inventory, support tier and long-term capacity. A TCO comparison across carrier softswitch vendors should include all of them.

Conclusion

See how VoiceBuy’s hosted softswitch compares on features and cost.

Explore hosted softswitch plans