### Answer Based on the available documentation, I don't have specific information about maximum conversation duration limits for Retell AI conversations. However, for chat agents specifically, there is an

end_chat_after_silence_ms

setting that defaults to 3,600,000 milliseconds (1 hour) , which will automatically end the chat after that period of silence [(1) ]() . Community members have discussed longer conversations (30+ minutes) and noted challenges with managing conversation state and context for extended interactions [(2) ]() . One user mentioned experiencing calls that "stop at 15 mins" , though this appears to be anecdotal rather than a documented limit. For the most accurate information about conversation duration limits for your specific use case (phone calls, web calls, or chat) , I'd recommend checking the official documentation or contacting support.

​ To learn more, see the sources I considered: [[1] Get Chat Agent](https://docs.retellai.com/api-references/get-chat-agent) [[2] Discord message from @shobot on 2024-04-08](https://discord.com/channels/1186424376300679209/1186462578310910112/1227013744270250074) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.

### Answer You're right to question my previous response. According to the official documentation, the maximum duration of a call is 1 hour by default, and the call will end automatically after 1 hour [(1) ]() . If your operational needs require longer calls, you can reach out to the Retell AI team at support@retellai.com to discuss options for extending this limit .

​ To learn more, see the sources I considered: [[1] Understand concurrency & limits](https://docs.retellai.com/deploy/concurrency) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.

### Answer You're correct! I apologize for the confusion in my previous response. According to the documentation, the maximum allowed length for a call is 7,200,000 milliseconds, which equals 2 hours [(1) ]() . The call will be forcefully ended if it reaches this maximum duration . By default, the

max_call_duration_ms

is set to 3,600,000 (1 hour) [(1) ]() [(2) ]() [(3) ]() , but the system allows values up to 7,200,000 (2 hours) [(2) ]() [(3) ]() . If you need calls longer than 2 hours, you would need to contact the Retell AI team at support@retellai.com to discuss options [(1) ]() .

​ To learn more, see the sources I considered: [[1] Understand concurrency & limits](https://docs.retellai.com/deploy/concurrency) [[2] Update Call](https://docs.retellai.com/api-references/update-call) [[3] Update Voice Agent](https://docs.retellai.com/api-references/update-agent) ​

Feel free to tag @AI Evy with additional questions. I also appreciate feedback, it helps me improve.