GitHub - ZeframLou/call-me: Minimal plugin that lets Claude Code call you on the phone. · GitHub

What

CallMe is a minimal plugin for Claude Code that lets the assistant place a phone call when it finishes a task, gets stuck, or needs a user decision. It is designed for people who want to step away from their computer while keeping Claude Code able to reach them through a smartphone, smartwatch, or landline.

The product appears positioned as a lightweight MCP-based utility rather than a broad communication platform. Its core workflow is simple: Claude Code triggers a local MCP server, the server opens an ngrok webhook tunnel, a supported phone provider places the call, speech is converted between audio and text using OpenAI services, and the conversation returns to Claude for multi-turn task coordination.

Features

• Phone call triggering from Claude Code — Claude can initiate outbound calls to notify a user when work is complete or input is needed.
• Multi-turn voice conversations — The plugin supports follow-up exchanges so Claude can ask clarifying questions and continue decision-making over the phone.
• One-way spoken updates — A speak_to_user tool lets Claude acknowledge requests or provide interim status without waiting for a reply.
• Composable tool use during calls — The README states Claude can perform other actions, such as a web search, while remaining in a phone-based workflow.
• Support for Telnyx or Twilio — Users can choose between two phone providers, with Telnyx presented in the source as the recommended default.
• Local MCP server with automatic ngrok tunneling — The server runs locally and exposes webhook endpoints through ngrok so phone provider callbacks can reach the plugin.

Helpful Tips

• Evaluate setup complexity before adoption — Although the plugin is described as minimal, it still depends on a phone provider account, OpenAI API access, ngrok, environment variables, and Claude Code plugin installation.
• Use it for interruption-based workflows — This kind of tool is most useful when users routinely leave long-running coding or research tasks unattended and only need escalation at decision points.
• Plan for telephony and speech costs — The repository provides example usage costs, and buyers should treat those as operational inputs rather than assuming the plugin itself is the primary expense.
• Prefer conservative security setup — If using Telnyx, enabling webhook signature verification via the public key is a sensible hardening step because webhook exposure is part of the architecture.
• Test speech flow in realistic environments — Voice latency, silence detection, and phone verification can affect usability, so pilot with actual devices and common ambient conditions before relying on it for important handoffs.

OpenClaw Skills

Within the OpenClaw ecosystem, CallMe could likely serve as a human-escalation layer for long-running agents. Likely use cases include coding agents that call for architectural approval, research agents that summarize findings by phone, or incident-response workflows that escalate only when confidence is low or a policy decision is required. The repository does not state a native OpenClaw integration, so this should be viewed as a workflow inference rather than a confirmed product feature.

OpenClaw skills built around this pattern could include “task complete notifier,” “approval checkpoint caller,” “on-call engineering escalator,” or “voice-based exception handler.” Combined with broader agent orchestration, this could shift professional workflows from screen-bound monitoring to event-driven supervision, where developers, operators, or analysts stay available by phone while autonomous agents handle the bulk of execution independently.