There is a problem after sending the SMS during the call. The SMS is sent correctly, but the conversation stays silent. I've configured different options to help the assistant respond, but it didn't work. "messages": [ { "type": "request-start", "content": "", "blocking": false }, { "role": "assistant", "type": "request-complete", "content": "SMS was sent successfully. Confirm this to the user and ask if they need anything else.", "endCallAfterSpokenEnabled": false }, { "type": "request-response-delayed", "content": "Could you confirm please ?", "timingMilliseconds": 3000 } ] I don't know what else to do. https://cdn.discordapp.com/attachments/1488209985375698994/1488209985534955681/Captura_de_pantalla_2026-03-30_100256.png?ex=69cbf30e&is=69caa18e&hm=6a89854edaafb4304daf2afe46f0af1fdd5bad0543dc61f2b395c8014961e989&

Try updating your tool's

messages

array to ensure the

request-complete

message is correctly structured and will be spoken aloud. Here’s an example:

json
"messages": [
  {
    "type": "request-complete",
    "role": "assistant",
    "content": "The SMS was sent successfully. Is there anything else I can help you with?",
    "endCallAfterSpokenEnabled": false
  }
]

Make sure this is placed inside your tool configuration and that no other hooks or settings are suppressing speech after tool execution. For more details, see the [handoff tool messages documentation](https://docs.vapi.ai/squads/handoff). Source: - [Handoff tool messages documentation](https://docs.vapi.ai/squads/handoff)

Waht you say doesn't make sense, currently, the structure has that format.

Looks like the SMS sends fine, but the agent just doesn’t pick the conversation back up after the tool call. This usually means the flow isn’t continuing after tool_call_result, especially if the tool isn’t blocking or the next message isn’t tied to that same turn. I’d try making the tool blocking or forcing a direct assistant reply right after it finishes. Are you seeing any assistant message after the tool result in your logs, or does it just stop there? @GeraDeluxer

Thank for you response @Matt . Yes, the message is being sent correcly, but the assistant isn't picking up "Request Complete" or the "Request Response Delayed" messages comfigured in the tool (should say it out laud). As shown in the image, there are two logs when the message is sent, one always say "text successfully sent" and the second includes success, status and messageId. After that, the assistant stay silent. I already configured in the prompt with instructions to take action after sending the SMS, but it appear to be completly ignored.

Hi Gera, Can you please add your call id for reference

sure, 019d4120-438b-7990-88eb-f914bd32d237

Hi, Thank you for your patience,we reviewed the call and noticed that the Send SMS tool does not currently have a request-complete message configured. The error most likely to happen as the flow was: tool executed → successful response → no follow-up assistant message → assistant waited for the user to speak → user ended the call This likely happened because, without a request-complete message, the assistant had no closing response after the tool finished. We also checked the Twilio debug audio and confirmed there is no sound after the tool call, which aligns with this behavior. Could you please double-check whether the request-complete message is configured in the actual live assistant/call setup?