Skills elevenlabs-voice-agent

Build and manage ElevenLabs Conversational AI voice agents with Twilio phone integration. Use when creating AI phone agents (cold callers, appointment setters, customer service), configuring voice/LLM settings, connecting Twilio phone numbers, or debugging voice agent issues. Covers NEPQ sales framework, objection handling, and call qualification flows.

install

source · Clone the upstream repo

git clone https://github.com/openclaw/skills

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/openclaw/skills "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/boris148/elevenlabs-voice-agent" ~/.claude/skills/clawdbot-skills-elevenlabs-voice-agent && rm -rf "$T"

manifest: skills/boris148/elevenlabs-voice-agent/SKILL.md

source content

ElevenLabs Voice Agent

Build AI phone agents using ElevenLabs Conversational AI API + Twilio.

Setup Flow

Create agent via ElevenLabs dashboard or API
Configure voice, TTS model, LLM, and system prompt
Purchase/connect Twilio phone number via ElevenLabs phone integration
Test and iterate on script, voice settings, turn-taking

Optimal Voice Settings (Proven)

Setting	Value	Why
TTS Model	v3 conversational	Best quality for phone calls
Expressive mode	ON	Natural inflection
Stability	0.45	Natural variation without inconsistency
Similarity	0.75	Recognizable voice
Speed	1.2x	Fast enough for cold calls (API max)
Streaming latency	4	Balance speed vs quality
Turn timeout	2s	Don't wait too long for response
Eagerness	eager	Jump in naturally
Speculative turn	ON	Faster responses
Cascade timeout	3s	Handle pauses

Recommended Voices

Alexandra (
```
kdmDKE6EkgrWrrykO9Qt
```
): Pleasant female, great for cold calls
Hope (
```
OYTbf65OHHFELVut7v2H
```
): Warm female backup

LLM Choice

Use

gpt-4o-mini

for phone agents — speed is critical, latency kills calls.

Key API Endpoints

POST https://api.elevenlabs.io/v1/convai/agents/create
PATCH https://api.elevenlabs.io/v1/convai/agents/{agent_id}
GET https://api.elevenlabs.io/v1/convai/agents/{agent_id}
POST https://api.elevenlabs.io/v1/convai/twilio/phone-numbers — Connect Twilio number

Enable Phone Features

Enable these tools on the agent:

voicemail_detection

end_call

background_voice_detection

NEPQ Sales Framework

For appointment-setting agents, use Neuro-Emotional Persuasion Questioning:

Permission-based opening ("Do you have a quick moment?")
Question-led qualification (don't pitch, ask)
Emotional connection questions before booking
Soft close with specific time options

Twilio Integration

Get Twilio Account SID + Auth Token
Use ElevenLabs API to create phone number connection
Phone number is provisioned automatically by ElevenLabs
Calls route: Twilio → ElevenLabs → AI agent

Common Issues

Robotic voice: Switch to v3 conversational model, enable expressive mode
Slow responses: Use gpt-4o-mini, increase streaming latency optimization
Cuts off caller: Increase turn timeout, reduce eagerness
Sounds scripted: Add personality to system prompt, lower stability slightly