Media
DTMF Tone Generator
Generate ITU-T Q.23/Q.24-compliant DTMF touch-tone sequences (0-9, *, #, A-D) as audio files — IVR prompts, PBX testing, film props, decoder development. Tone/pause timing, twist and level configurable, Q.24 compliance checked.
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Quick start
Call this tool from your code in three languages.
cURL
curl -X POST 'https://api.elysiatools.com/en/api/tools/audio-dtmf-tone-generator' \
-H 'Content-Type: application/json' \
-d '{"digits":"1705551234","toneMs":90,"pauseMs":60,"twistDb":0,"levelDb":-9,"sampleRate":"44100","format":"wav","repeats":1}'API reference
Send a POST request with your inputs as JSON. File parameters require a separate upload first.
Endpoint
HTTP
POST https://api.elysiatools.com/en/api/tools/audio-dtmf-tone-generatorParameters
| Name | Type | Required | Description |
|---|---|---|---|
| digits | text | Yes | — |
| toneMs | number | No | — |
| pauseMs | number | No | — |
| twistDb | number | No | — |
| levelDb | number | No | — |
| sampleRate |
MCP integration
Add this tool to your Model Context Protocol server so AI agents can list and call it.
Server configuration
Add this block to your MCP client configuration:
mcp.json
{
"mcpServers": {
"elysiatools-audio-dtmf-tone-generator": {
"name": "audio-dtmf-tone-generator",
"description": "Generate ITU-T Q.23/Q.24-compliant DTMF touch-tone sequences (0-9, *, #, A-D) as audio files — IVR prompts, PBX testing, film props, decoder development. Tone/pause timing, twist and level configurable, Q.24 compliance checked.",
"baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=audio-dtmf-tone-generator",
"command": "",
"args": [],
"env": {},
"isActive": true,
"type": "sse"
}
}
}List available tools
After connecting to the SSE endpoint, list the exposed tools:
tools/list
{
"jsonrpc": "2.0",
"id": 1,
"method": "tools/list"
}Call this tool
Invoke the tool by its id, passing arguments built from its parameters:
tools/call
{
"jsonrpc": "2.0",
"id": 2,
"method": "tools/call",
"params": {
"name": "audio-dtmf-tone-generator",
"arguments": {
"digits": "1705551234",
"toneMs": 90,
"pauseMs": 60,
"twistDb": 0,
"levelDb": -9,
"sampleRate": "44100",
"format": "wav",
"repeats": 1
}
}
}Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).
Questions or issues? Contact [email protected]