PortaAIM
PortaAIM is an inference service delivery platform that combines PortaBilling with an AI gateway to authorize, meter, and settle AI usage in real time. It checks the customer, pricing rules, and balance before a request runs, reserves funds against the worst-case cost, then meters actual usage in tokens, images, audio, tool calls, or other units and releases any unused balance. Pricing, tokens, credits, and bundles are configured without code changes, and resellers are settled within the same system. PortaAIM routes requests to the lowest-cost capable model, offers a white-label customer portal, and runs across multiple sites for continuity. It supports full API and MCP access, and includes guardrail modules for frameworks such as the EU AI Act. Available as perpetual license or pay-as-you-go, self-hosted or hosted by PortaOne — built on 25+ years of real-time billing experience for nearly 500 operators worldwide.
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PortaSwitch
5.0 out of 5 stars
(1 Rating)
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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XCastLabs
4.8 out of 5 stars
(29 Ratings)
The First and Still the Best in VoIP Communication! Our proprietary technology has been providing telecom services for over 20 years. XCast’s broad suite of products—Hosted IP-PBX, SIP Trunking, Carrier Services and Call Center Solutions—are available directly from XCastLabs or through our white label Resellers, our agent partners, carriers or call centers. XCast exceptional service, rates, and products meet the FCC standards for STIR/SHAKEN network compliance.
XCast’s Hosted PBX solution is delivered over the Internet to any of your connected devices. Promotional plans start as low as $9.95 per month and include FREE Outbound minutes and a FREE Yealink Business Phone per extension. Sip Trunk Plans begin at $4.95 w/unlimited inbound minutes and free installation.
Our Automatic Call Distribution (ACD) system has full reporting, automated customer callback, custom prompts, music on-hold, call recording, call monitoring (with whisper and barge-in), call transfer and more!
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Zadarma
4.9 out of 5 stars
(12 Ratings)
Powerful Cloud Telephony for Global Businesses
Zadarma offers a feature-rich VoIP platform designed for businesses that want flexibility, scalability, and professional communication without high costs. Set up your cloud PBX in minutes, manage international teams, and serve customers worldwide — all from a single interface.
Key features:
- Virtual phone numbers in 110+ countries
- Free cloud PBX with IVR, call routing, and analytics
- Integration with CRMs: HubSpot, Zoho, Bitrix24, and more
- AI Voice Agent and AI-speech recognition and analytics
- Apps for desktop, mobile, and browser-based calling
- AI-powered voice agents and call tracking
- Full control via web interface and API
Ideal for remote teams, support centers, and growing companies looking to modernize their phone systems.
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