Per-minute, per-line, per-plan.
Voice bills can have hundreds of line items per customer. Generic billing software either flattens them or breaks.
VoIP
Subscriber billing for voice. Built for the modern stack.
Per-line and per-minute billing, embedded payments, and customer ops in one platform.
Why voice billing is its own discipline
Per-minute meters, regulatory fees, and softphone fleets. Generic SaaS billing doesn't cut it.
Compliance at every state line.
911 fees, regulatory pass-throughs, USF charges. Different rules in every jurisdiction. Errors are filing risk.
Margin hides in the minutes.
Per-minute and international usage can quietly erode margin. Generic billing software doesn't break it out by plan or usage cohort.
Capabilities for voice operators
Voice billing.
Done right.
Sonar handles the per-minute, per-line, multi-jurisdiction reality of voice billing without spreadsheets in the middle.
Per-minute, per-line, per-plan, per-jurisdiction.
Voice-specific billing rules: call detail records imported, rated, taxed, and invoiced. Plan tiers, rollover minutes, international rate decks all handled.
- CDR import and rate-card calculation
- Plan tiers, rollover minutes, international rate decks
- Multi-jurisdiction tax engine across US states and Canadian provinces
Voice Billing’s flow
From CDR to invoice
- 01
CDRs imported
Call records pulled and matched to subscriber lines.
Billing Tools - 02
Rates applied
Plan rate-card and international decks calculated per call.
Billing Tools - 03
Taxes applied
State, federal, USF, and 911 fees calculated automatically.
Billing Tools - 04
Invoice issued
Multi-line invoice with full call detail.
Billing Tools - 05
Payment captured
Visa, Mastercard, ACH via embedded Sonar Billing.
sonarPay
Frequently asked
Common questions about voip.
Can Sonar bill per-minute and per-line voice?
Yes. Sonar imports call detail records, rates them against rate decks, applies plan tiers and rollover minutes, and invoices, with multi-jurisdiction tax across US states and Canadian provinces.
Does Sonar handle voice regulatory fees?
Voice billing accounts for the per-jurisdiction reality of 911 fees, USF charges, and regulatory pass-throughs, so invoices stay compliant instead of becoming filing risk.
How does Sonar track phone numbers and porting?
Each line is a record, with plan changes, ports, and ports-out tracked at the line level and full call history visible to support on pickup.
What voice-specific reporting does Sonar provide?
Voice reporting covers margin per rate plan, international usage cohorts, and AR aging, so you can see where usage is eroding margin before it shows up on the P&L.
Other industries
Sonar fits the rest of your stack too.
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