Create Phone Number

Create a new phone number.

Parameters: phone_number (PhoneNumberCreate): The phone number data to create. request (Request): The FastAPI request object. db (AsyncSession): The database session (injected). organization_id (Optional[str]): The organization ID from the API key or request.

Returns: PhoneNumber: The created phone number.

Raises: HTTPException: - 400: If organization ID is missing - 403: If voice assistant or squad does not belong to the organization - 404: If voice assistant or squad is not found - 422: If there's a validation error in the request body - 500: If an unexpected error occurs during creation