--- title: "Onebox – Virtual Phone System — App Overview" url: https://marlvel.ai/apps/onebox-virtual-phone-system category: Business developer: J2 Web Services, Inc. platforms: ios rating: 3.0 (46 ratings) pricing: free report_level: overview generated: 2026-05-09 last_verified: "2026-05-09T23:26:11.141Z" --- > **Key Insight:** This app serves as a modernized, VoIP-enabled replacement for the legacy Onebox mobile client, focusing on core communication stability for business users. | Metric | Value | |--------|-------| | Category | Business | | Rating | 3.0 ★ (46) | | Pricing | free | | Platforms | iOS | | Latest Version (iOS) | 5.3.3 | | Developer | J2 Web Services, Inc. | ## What is Onebox – Virtual Phone System? Onebox is a virtual phone system mobile application designed to provide small business users with professional call management tools. The app enables VoIP-based calling and improved notification reliability, replacing the legacy Onebox mobile experience. ## Key Features - **VoIP Calling**: Allows users to make and receive business calls directly over the internet without relying on cellular carrier minutes. - **Push Notifications**: Provides real-time, reliable alerts for incoming calls and messages to ensure consistent connectivity. - **Shared Contact Management**: Enables users to import device contacts and sync them across multiple Onebox numbers for improved visibility. ## Who is it for? Small business owners and professionals requiring mobile control over their virtual business phone extensions. ## Links - [App Store](https://apps.apple.com/us/app/onebox-virtual-phone-system/id338908820?uo=4) - [Full Intelligence Report](https://marlvel.ai/apps/onebox-virtual-phone-system) --- *This is an overview report. Sentiment analysis, competitive landscape, and SWOT analysis are available in the [full intelligence report](https://marlvel.ai/apps/onebox-virtual-phone-system).* *Generated by [Marlvel.ai](https://marlvel.ai) — Independent app intelligence.*