---

name: retellai-advanced-troubleshooting description: "Retell AI advanced troubleshooting \u2014 AI voice agent and phone call
\ automation.\nUse when working with Retell AI for voice agents, phone calls, or
\ telephony.\nTrigger with phrases like "retell advanced troubleshooting", "
retellai-advanced-troubleshooting", "voice agent".\n" allowed-tools: Read, Write, Edit, Bash(npm:), Bash(curl:), Grep version: 1.9.0 license: MIT author: Jeremy Longshore jeremy@intentsolutions.io tags:

• saas
• retellai
• voice
• telephony
• ai-agents compatibility: Designed for Claude Code

---

Retell AI Advanced Troubleshooting

Overview

Implementation patterns for Retell AI advanced troubleshooting — voice agent and telephony platform.

Prerequisites

• Completed retellai-install-auth setup

Instructions

Step 1: SDK Pattern

import Retell from 'retell-sdk';
const retell = new Retell({ apiKey: process.env.RETELL_API_KEY! });

const agents = await retell.agent.list();
console.log(`Agents: ${agents.length}`);

Output

• Retell AI integration for advanced troubleshooting

Error Handling

Error	Cause	Solution
401 Unauthorized	Invalid API key	Check RETELL_API_KEY
429 Rate Limited	Too many requests	Implement backoff
400 Bad Request	Invalid parameters	Check API documentation

Examples

Isolate a voice-call failure without changing production routing

Reproduce the reported failure with a test number and a non-production agent version. Capture the call identifier, selected agent version, webhook response code, and timestamp; redact caller audio and personal data from the ticket. Compare that evidence with one successful test call before changing prompts, transfers, or routing. Promote the smallest verified correction through the preview path, then retain the before/after identifiers for rollback.

Resources

• Retell AI Documentation
• retell-sdk npm

Next Steps

See related Retell AI skills for more workflows.