# isip

> isip — nwalker85-isip. Use this tool when you need to enable AI agents to make phone calls over SIP, allowing for real-time voice interactions with humans. The isip tool provides a Python SDK, CLI, and MCP server, making it easy to integrate with AI systems and facilitate voice communication. Ideal for use cases requiring automated phone calls, such as customer service, notifications, or virtual assistants.

Canonical page: https://skillsregistry.net/skills/nwalker85-isip  
JSON: https://api.skillsregistry.net/v1/skills/nwalker85-isip

## Description

Give an AI agent a phone — an MCP server (+ Python SDK & CLI) that lets AI agents place real phone calls over SIP. Built on PJSIP.

## Trust

- **Trust score (0–1):** 0.96
- **Verification tier:** verified
- **Last scanned:** 2026-09-28

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** container
- **Runtime environment:** vm
- **License:** MIT
- **Updated:** 2026-09-28

## Source

- **Source listing:** [GitHub](https://github.com/nwalker85/isip)

## Use it

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "nwalker85-isip"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/nwalker85-isip` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/nwalker85-isip/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt