NewbieinAI
09/03/2025, 10:16 PMVapi Support Bot
09/03/2025, 10:17 PMNewbieinAI
09/03/2025, 11:59 PMChiranjeet Mishra
09/05/2025, 6:27 AMendedReason in the call logs to determine why the call did not forward as expected. You can use this [guide](https://docs.vapi.ai/calls/call-ended-reason) to understand the possible reasons.
2. **Review Configuration**:
- Make sure that your assistant's server messages do not include "phone-call-control", as this could override Vapi's default call management.
- Ensure the phoneCallProviderBypassEnabled setting is set to false, allowing Vapi to handle the call forwarding.
3. **Validate Transfer Scenarios**: Double-check that your transfer scenario is compatible with Vapi's supported operations. For example, web-to-phone transfers are not supported.
4. **Check Telephony Provider Logs**: If Vapi shows successful forwarding but calls still drop, please review your telephony provider logs for errors. This could provide more context for why a transfer might fail.
5. **Inspect SIP Configuration**: For SIP related issues, ensure that your SIP endpoints are correctly configured and that there are no misconfigurations preventing the call from proceeding.
You might find the [debugging guide](https://docs.vapi.ai/phone-calling/transfer-calls/debug-forwarding-drops) helpful to systematically resolve forwarding issues.
If the issue persists, consider examining logs from your provider for more specific error messages that can clarify the cause.