Sonar
Sonar: Sonar brings ISP billing, network operations, payments, and service workflows together. Ranked #15 of 31 in Telecom Billing Software by our editors (7.8/10); pricing: Paid; best for growing ISPs needing billing and network operations.
At a glance
- Editor score7.8 / 10
- PricingPaid
- Best forGrowing ISPs needing billing and network operations
- Free planNo
- Paid from$500/mo
- Usage ratingYes
- Founded2015
- Facts checked20 Sep 2026
Where it wins
- Combines billing, payments, provisioning, monitoring, and ticketing
- Supports prorated charges, usage data services, taxes, and delinquency workflows
- Offers API access, customer portals, and broadband ecosystem integrations
Where it doesn't
- No free plan is available
- Per-subscriber tiers use annual billing
- Premium features and integrations may add to the final quote
Our verdict on Sonar
Sonar is a cloud-based OSS/BSS platform for internet service providers, including fiber, wireless, cable, MDU, and VoIP operators. It combines recurring billing, customer accounts, invoices, payments, provisioning, network monitoring, inventory, ticketing, field service, scheduling, and reporting. The product is aimed at providers that want billing and network operations in one web and API-accessible system rather than separate tools for each workflow.
Pricing starts at $500 per month with everything included, while premium features are available à la carte. The published subscriber tiers charge $1.25 per active subscriber per month for 1–5,000 subscribers, $1 for 5,001–10,000, and $0.75 for 10,001–50,000, with annual billing. An Enterprise plan is available through a quote. Buyers should account for the possibility that premium features and integrations affect the final price, and should compare the annual per-subscriber structure with their subscriber base and growth plans.
Sonar’s strongest differentiator is its breadth across ISP operations. Billing supports configurable cycles, prorated charges, packages, discounts, SKUs, usage-related bandwidth data, invoice batching, taxes through Avalara, auto-pay, batch payments, suspension, dunning, and vacation mode. Network provisioning, IP address management, monitoring, alerting, CRM, field service, inventory, and customer portals extend the system beyond invoicing. Integrations include Plume, Calix, Cambium, Avalara, Preseem, VETRO, and other telecom tools, while sonarPay adds payment processing in the U.S. and Canada. Growing providers seeking an integrated operating system should consider Sonar; smaller teams wanting a free product or a narrowly focused billing tool should look elsewhere.
Your product? Our editors can test Sonar in depth and publish a review, labelled as paid · from $149/mo →
Sonar pricing
All 5 Sonar plans and prices →
Sonar fact sheet
| Free plan | No |
|---|---|
| Paid from | $500/mo |
| Usage rating | Yes |
| Prepaid billing | Not verified |
| Postpaid billing | Not verified |
| Plan management | Yes |
| Invoice generation | Yes |
| Payment collection | Yes |
| Customer accounts | Yes |
| Deployment | Cloud |
| Platforms | Web |
| Compliance & security | SOC 2, PCI DSS |
| Support | Email, Phone, Docs |
| Built for | Small business, Mid-market, Enterprise (editorial estimate) |
| Integrations | 13 integrations: Plume, Positron, Actifai, Admiral, Adtran Mosaic, Avalara … See all → |
| Pricing | Paid (source) |
| Website | sonar.software |
| Facts checked | 20 Sep 2026 |
Sonar integrations
Sonar lists 13 integrations on its own site.
- Plume
- Positron
- Actifai
- Admiral
- Adtran Mosaic
- Avalara
- Calix
- Cambium
- CrowdFiber
- MarketBroadband
- Preseem
- TowerCoverage
- VETRO
Alternatives to Sonar
- Cerillion Revenue ManagerA broad billing system for telecoms managing complex prepaid, postpaid and multi-play revenue.9.4
- Symphony BillingBroad telecom billing, mediation, provisioning, partner settlements, and fraud controls.9.3
- Tecnotree Revenue MonetisationA broad revenue monetisation suite for convergent, digital and wholesale telecom services.9.1
Also Ranked In
Sonar is ranked in 2 of our directories.
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Featured on iTechGuides
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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