@Fourshoe It sounds like there might be an issue with the configuration of the transfer plan or the handling of the SIP headers on your server. The

blind-transfer-with-summary-sip-header

plan should include a summary in the SIP header, as the name suggests. Here are a few things to check: 1. **Transfer Plan Configuration**: Ensure that the transfer plan is correctly set to

blind-transfer-with-summary-sip-header

. There might be a misconfiguration causing the summary not to be included. 2. **SIP Header Inspection**: Verify that your server is correctly parsing the SIP headers. It's possible that the summary is being sent, but your server is not extracting it correctly. 3. **VAPI Configuration**: Double-check the VAPI configuration to ensure that it's set up to pass the summary in the SIP header. 4. **Logs**: Review the logs on both VAPI's side and your server's side to see if there are any errors or warnings that could indicate why the summary is not being passed. If after checking these points the issue persists, it would be best to contact support with detailed information about your configuration and any relevant logs so they can assist you further. If you need to contact support, please let me know, and I can guide you on how to do that.