I’m planning to run an AI-powered call center with VAPI, but sometimes the phone numbers get marked as spam, and we’ll need to change them often. Because of this, I’d like to use SIP trunking to connect my own telephony provider to VAPI, instead of using Twilio or Vonage. I understand that I’ll need to be on the enterprise plan for this. Could you kindly guide me through the step-by-step process of setting up SIP trunking and how to get the enterprise plan? Your help would be much appreciated!

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