Agent stops responding after Welcome node

Support Help
1

Hello,

I’m experiencing an issue with my Retell AI agent.

The agent answers the call and successfully plays the Welcome node greeting, but after the caller speaks, the agent becomes silent and never responds again.

What I already tested:

  • Changed Welcome from Static Sentence to Prompt

  • Switched the node LLM to GPT-5.1

  • Published the agent again

  • Tested multiple calls from different phones

  • The call remains active and background call center noise continues playing

  • No further AI response is generated after the user speaks

It seems like either:

  • the Intent Classifier node is not processing input,

  • speech/transcription is getting stuck,

  • or transitions are failing after the Welcome node.

I would appreciate it if you could please check my flow and node behavior on your side.

Thank you.

2

Hello @tednovaone can you share your Agent ID? and if any relevent Call ID. Thank You

3

@tednovaone Kindly share the nodes, outputs, and connector edges for the flow.

This appears to be a case where the node is receiving caller input but is unable to classify it into any configured output category. If the output does not have fallback/default routing, the call may remain active but the agent may stop responding.Please also share whether the caller’s speech is visible in the transcript after the Welcome node, so we can confirm whether this is a transcription issue or a node-routing/classification issue.