I need help with linking my vapi phone number with telnyx https://cdn.discordapp.com/attachments/1350049465930747986/1350049466060640266/Screenshot_2025-03-13_143037.png?ex=67d5530b&is=67d4018b&hm=192240833f2526f4cfec492e591194d1d9ddba272942b793b391669cfc175b3e& https://cdn.discordapp.com/attachments/1350049465930747986/1350049466329202708/Screenshot_2025-03-13_143128.png?ex=67d5530b&is=67d4018b&hm=125db584158b3ccc636c76d73b60e711d1818bd0eff31c06ee9c68dab68595b6& https://cdn.discordapp.com/attachments/1350049465930747986/1350049466580865034/Screenshot_2025-03-13_145211.png?ex=67d5530b&is=67d4018b&hm=17510be7537dd0206aba2b7a460576c46dd0f7e35ee6f5e1e84c5a96ca667303&

Hi there! I see you're having trouble linking your Vapi phone number with Telnyx. Those credential errors can be frustrating, but I can help you troubleshoot! 🔍 Based on the error messages you're seeing, here are some steps to resolve the issue: ### 1. Verify your SIP trunk configuration Make sure you've created the SIP trunk credential correctly on Vapi:

bash
curl -X POST https://api.vapi.ai/credential \
-H "Content-Type: application/json" \
-H "Authorization: Bearer your-vapi-private-api-key" \
-d '{
"provider": "byo-sip-trunk",
"name": "Telnyx Trunk",
"gateways": [
{
"ip": "sip.telnyx.com"
}
]
}'

[Source](https://docs.vapi.ai/advanced/sip/telnyx) ### 2. Check for common credential issues: - **API Key Format**: Ensure there are no extra spaces or characters in your API key - **Authorization Header**: Make sure you're using the correct format:

Authorization: Bearer YOUR_API_KEY

- **Endpoint Issues**: Verify you're using the correct and up-to-date endpoints - **Key Permissions**: Confirm your API key has the necessary permissions ### 3. Verify your phone number setup: After creating the trunk, make sure your phone number is properly linked:

bash
curl -X POST https://api.vapi.ai/phone-number \
-H "Content-Type: application/json" \
-H "Authorization: Bearer your-vapi-private-api-key" \
-d '{
"provider": "byo-phone-number",
"name": "Telnyx SIP Number",
"number": "your-sip-phone-number",
"numberE164CheckEnabled": false,
"credentialId": "your-new-trunk-credential-id-which-you-got-from-previous-step"
}'

### 4. Test your API key: Try verifying your API key with a simple request:

bash
curl --location --request GET 'https://api.vapi.ai/users' \
--header 'Authorization: Bearer YOUR_PRIVATE_API_KEY'

From your third image, it looks like you might also need to set up a connection, application, or profile for your phone number in Telnyx. Make sure this step is completed as well. Let me know if you need any clarification on these steps! 👍 Sources:

I have done it but now how do i set up a connection, application, or profile for my phone number in telnyx. Can you please guide me through this step by step i have no idea how.

so you mean the configuration in telnyx to connect vapi assistant?

@Jaws @NS.inc did you guys checked out this doc https://docs.vapi.ai/advanced/sip/telnyx

yes, please use the api described in https://docs.vapi.ai/advanced/sip/telnyx