@ruby2
I'm sorry to hear that you've encountered a delay in response. To connect a SIP trunk and have assistants answer and make calls, you indeed need to be on an Enterprise Plan which includes access to the Vapi SIP trunk for telephony.
To expedite your request, I can assist you with the process of getting started on the Vapi Enterprise plan. Please fill out the form mentioned in the "Contact us" section to provide us with the necessary details. Once you've filled out the form, our team will get in touch with you to discuss the next steps.
If you've already filled out the form and haven't received a response, I can follow up on your behalf. Could you please provide me with the email address or ticket number associated with your inquiry? This will help me to track down your previous communication and ensure that our team addresses your request promptly.