Hey, so I have a number that I ported from Twilio to Vapi, assigned the number to an Agent, but when calling that number the agent does not pick up, how can I solve this issue?

Hi Simon! 👋 I understand you're having trouble with your agent not picking up calls after porting a number from Twilio to Vapi. I don't have access to your specific account details, but I can definitely help you troubleshoot this common issue. Here are some key things to check: ## 1. Verify Twilio Webhook Settings After porting a number, the Twilio webhook settings might not be correctly pointing to Vapi's server. - Go to Twilio, manage numbers, find your number, and check if the webhook is pointing to Vapi's server - One common issue is that the webhook might have been changed from "Webhook" to "SIP" during porting - switching it back can resolve the problem ## 2. Check Vapi Configuration - Ensure an assistant is assigned to the phone number in the Vapi dashboard - Verify the number is properly configured in Vapi after porting ## 3. Check for Network and SIP Issues - Verify your network allows traffic on the SIP protocol - Ensure any firewalls or NATs are configured to allow SIP messages to pass through ## 4. Verify Number Format and Forwarding Settings - If using call forwarding, ensure the

forwardingPhoneNumber

is in the correct E.164 format (e.g., +15558675309) - Check that there are no call loops (forwarding to the same number) ## 5. Review Voicemail Settings - Check if voicemail settings are configured to pick up calls too quickly before the agent has a chance to respond ## 6. Check for System Limitations - High call volume or reaching concurrency limits can cause calls to be missed - When the call concurrency limit is reached, incoming calls will be redirected to the fallback number (if configured) Is there anything specific from these areas you'd like me to explain in more detail? Sources: - [Troubleshooting inbound calls to Vapi agents](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1343208312249913397)