SMS foxbox S1

SMS foxbox S1 is a compact Linux-based SMS server that lets you send and receive text messages using standard SIM cards or external SMS aggregators such as Twilio, Infobip and many others. It delivers the reliability of a hardware SMS gateway with the flexibility of a modern web console and developer-friendly APIs.

100% API compatible with previous foxbox generations – existing integrations keep working, and upgrades for legacy customers are transparent and immediate.

Messaging & SMS Gateway Appliance

SMS foxbox S1 is a compact, cost-effective hardware SMS/MMS gateway designed for technical teams that need a reliable on-premise platform for mission-critical alerts, notifications and bulk SMS campaigns. It combines a hardened Linux stack, a clean web interface and open APIs in a single ready-to-deploy box.

Existing SMS foxbox customers can migrate in minutes: the S1 appliance is fully backward compatible with all previous foxbox HTTP APIs, so your current applications keep working without code changes.

Main Software Features

• Ubuntu 24.04 LTS (64-bit) with hardened kernel 6.8
• Embedded Apache2 web server with HTTPS/SSL
• MySQL + ClickHouse OLAP DB, Postfix mail server
• Full web interface for device management and analytics dashboards
• Multi-user console based on PlaySMS, optimized for on-premise use
• REST/HTTP API and webhooks – see api.foxbox.it
• Support for SIM-based SMS + native integration with Twilio, Infobip and others

Key Functionalities

• Two-way SMS with logging and delivery reports
• Email-to-SMS and SMS/MMS-to-email gateway mode
• Integration with Nagios, Icinga, Zabbix, Prometheus and many others
• Web UI for campaigns, address books, tagging and scheduling
• SMPP server support for SMSCs and legacy platforms
• HTTP/REST, SMTP and file-based connectors
• Multi-user, multi-tenant with roles and permissions

Typical Use Cases

• Mobile marketing & opt-in campaigns
• Bulk & transactional SMS (OTP, reminders, alerts)
• Crew & fleet management via SMS
• Broadcast, radio & TV shows interaction
• Email/SMS conversion hub for ticketing systems
• Monitoring & IT alerting when email/push is not an option

Why an On-Premise Hardware SMS Gateway?

• Works offline: keep sending SMS even without Internet
• Security & data control: all logs and SMS stay in your infrastructure
• High deliverability: direct SIM access + aggregator integration
• Cost control: avoid recurring per-message fees
• Deep integration: logging, IAM, backup and automation

Hardware Specifications