@Mudassar
Certainly! To check if a specific mobile number exists in VAPI under your account, you would typically use an API endpoint provided by VAPI that allows you to query user information or phone number details. However, as I don't have access to your server or the specific API details, I recommend checking the VAPI documentation for the appropriate API endpoint or function call that you can use to perform this check on your server.
If you need guidance on which API endpoint to use or how to structure your request, please provide more details or ask for the specific documentation, and I'll do my best to assist you. If you encounter any issues or have further questions, don't hesitate to reach out.