Toll fraud can turn one compromised SIP account into a five-figure bill overnight. ICTPBX adds per-tenant fraud and credit controls so you can cap exposure before it happens. You set a credit ceiling and fraud guards per customer, and the platform enforces them. Here’s how to protect your PBX software and your margins.
How toll fraud happens
Most toll fraud starts with a weak password or an exposed SIP endpoint. An attacker grabs an extension or trunk, then dials premium-rate or international numbers as fast as the system allows. By the time anyone notices, the call charges are already racked up. For a provider running many tenants, the risk multiplies with every account you add.
Per-tenant credit limits
ICTPBX lets you set a credit limit for each tenant. When a customer’s usage reaches the ceiling, their calls stop. That single guard caps the worst case: even if an account is compromised, the damage can’t exceed the credit you allowed. You decide the limit per customer based on what they actually need.
Fraud controls
Alongside credit limits, per-tenant fraud fields let you tighten how much exposure a single customer can create. You manage these settings per tenant, so a high-volume client and a small office can carry different guards that match their risk.
Why per-tenant matters in multi-tenant PBX
In a shared platform, one tenant’s incident shouldn’t put the rest at risk. Because the controls are scoped to each tenant, a problem on one account stays contained. That isolation is part of what makes multi-tenant PBX software safe to resell at scale.
Pairing fraud controls with billing
Credit limits work hand in hand with packages and subscriptions. The same usage that’s metered for billing, voice minutes and fax pages, also feeds the credit ceiling, so cost control and billing stay aligned rather than living in separate tools.
Frequently asked questions
What is toll fraud?
Toll fraud is the unauthorized use of a phone account, usually a compromised extension or trunk, to place expensive calls that the account holder ends up billed for.
How does ICTPBX limit exposure?
You set a credit limit per tenant. When usage reaches the ceiling, calls stop, so a compromised account can’t run up cost beyond the limit you set.
Are the controls per tenant?
Yes. Credit limits and fraud fields are managed per tenant, so each customer can carry guards that match their risk profile.
Do fraud controls work with billing?
Yes. The metered usage that drives billing also feeds the credit ceiling, so cost control and billing share the same data.
These controls shipped alongside our latest updates. Read the full ICTPBX feature update, see how we compare in ICTPBX vs FreePBX, or contact us to talk through a setup.