whereismyai
Koppar Lte Modem
Koppar Lte Modem is a hardware modem board that connects a computer to a phone line over USB-C for LTE data, SMS, and voice calls.
Koppar LTE modem is a 4-layer hardware board that equips a computer with its own phone line for LTE data, SMS, and voice calls. It connects via a single USB-C cable, allowing the computer to handle phone calls through a headset, route audio to a script or an AI agent, and send text messages. The board includes a Quectel EC25-EUX module for European LTE bands with 3G and 2G fallback, serial ports for AT commands like caller ID and answering, and an RP2040 microcontroller acting as a USB sound card for call audio. It requires a nano-SIM with a voice plan and two LTE antennas. The open source project provides KiCad files, Gerbers, and assembly files for fabrication.
Koppar Lte Modem at a glance
Key features
- Connects via a single USB-C cable
- Provides LTE data with 3G and 2G fallback
- Sends and receives SMS text messages
- Handles voice calls with audio on USB
- Uses AT commands for caller ID and call control
- Includes RP2040 sound-card firmware
- Supplied with KiCad project and fabrication files
Use it for
- Connect a computer to a dedicated phone line
- Route phone call audio to a script or AI agent
- Send and receive text messages programmatically
- Access LTE data networks on a computer
Alternatives to Koppar Lte Modem
- C0mpute — Peer-to-peer market rates with zero protocol fees for providers.
- CallMeMCP — It connects running artificial intelligence agents directly to phone calls.
- Opposable — Connects Claude Code or Codex to real Android and cloud phones for automated tasks.
- Kopai — Builds and hosts custom AI agents with managed infrastructure and built-in billing.
- Mika — Operates apps and the web on a hidden background screen while you use your phone.
- Agentring — Enables AI agents to call your phone over VoIP when needing decisions.
- Cumora — AI agents have memory, status, and initiate their own conversations.
- Tabichat — Enables coordination of multiple LLM agents via a private local message broker.
- Limma — It answers queries with complete sets and proof instead of partial search fragments.
- Lampline — Runs locally with zero telemetry and connects to 20 model providers.
- Esp32 Iphone Agent — It uses standard AirPlay and a USB mouse bridge, requiring no Mac, jailbreak, or developer account.
- Corsair — Eliminates integration maintenance and handles auth, permissions, and webhooks.
All Koppar Lte Modem alternatives