PortaBilling
PortaBilling is a billing and charging platform for telcos, MVNOs, and communication service providers. It enables operators to launch, price, provision, and manage voice, video, IPTV/VoD, IP Centrex/Hosted PBX, residential VoIP, WiFi, LTE, and IoT/M2M services. The platform supports wholesale, retail/SMB, wireless, converged, and IoT service models, including MVNO/MVNE deployments. PortaBilling offers an open API architecture for integration with third-party systems. It is available as a one-time unlimited license or a monthly SaaS subscription, with both on-premise and cloud (Oracle Cloud Infrastructure) deployment options. PortaBilling is used by over 500 customers worldwide.
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Seshnova
Seshnova is a cloud-native prepaid billing and session-enforcement platform for operators who can't afford to bill after the fact. It rates usage in real time, tracks entitlements across customers and products, and enforces hard cut-off the moment credit hits zero — no overspend, no reconciliation, no negative balances.
Built on FreeSWITCH, CGRateS, and Kamailio, Seshnova was purpose-built for prepaid telecoms: real-time credit control for prepaid voice, hard enforcement for calling cards, and hands-on migration tooling for operators moving off legacy platforms like Digitalk, PortaOne, and Telinta.
The same rating-and-enforcement loop extends to any metered service — EV charging, parking, API monetisation, IoT connectivity, and SaaS usage billing.
Multi-tenant, carrier-grade, and fully auditable. When entitlement ends, the session ends.
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PortaSwitch
PortaSwitch combines Class 4/5 soft switching (PortaSIP) and real-time billing with online charging (PortaBilling) on one platform. Wholesale carriers, MVNOs, ITSPs, and UCaaS/voice providers use it to run voice, messaging, IoT/M2M, and data traffic under a single BSS+OCS stack.
Key capabilities:
- Open REST API and self-service rate and plan changes, no vendor release needed
- Real-time prepaid and postpaid charging with balance tracking and fund-locking
- SIP routing sized for wholesale concurrent-call volumes, plus Cloud PBX/IP Centrex
- White-label wholesale and reseller layers
- Multi-site geo-redundancy with automatic failover
- Full source code access
- Migration without interrupting live subscribers
PortaSwitch is sold as a perpetual license not tied to subscriber count or as a monthly SaaS subscription based on billable events. It deploys on-premise, on Oracle Cloud Infrastructure, or hybrid, scaling across as many servers as capacity requires.
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Zoho Invoice
Zoho Invoice is a 100% free cloud-based invoicing solution designed to help small businesses with invoicing, tracking expenses, and accepting online payments. Key features include project billing, time tracking, reporting, customizable templates, and a client portaI.
Teams using Zoho Invoice can track estimates, convert them to invoices, and send reminders to clients to complete their outstanding payments. Additionally, users can create tasks, collect advance payments for projects, and keep track of their invoice history.
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