Glossary
BYO phone number
Also known as: bring your own number, BYO Twilio, phone number ownership
Definition
BYO (Bring Your Own) phone number is the model where the customer provisions and owns the phone number under their own Twilio (or equivalent telephony) account, and the AI receptionist vendor merely routes calls through it — versus the vendor providing a number under their own account that the customer loses on cancellation.
Why it matters
Your phone number is on your business cards, your truck wrap, your Google Business Profile, your website, your printed signage, your customer-relationship database. Losing it means rebranding all of those — a massive switching cost. If your AI receptionist vendor provisions the number under THEIR account, they hold that switching cost over you forever. BYO breaks that lock-in: you own the number, you decide who routes through it, you can switch vendors next week without losing the number that's been answering for 8 years.
How it works
Step 1: you sign up for a Twilio account under your own business name + credit card (5 minutes). Step 2: you provision a phone number from Twilio's inventory (~$1.15/month, takes 30 seconds). Step 3: you paste the Twilio SID + auth token into the AI receptionist setup; calls to that number now route to the AI. The number stays in your Twilio account. If you cancel the AI receptionist tomorrow, you can route the same number to voicemail, to a different AI vendor, to a human answering service, or to your direct cell — your call, your number.
Examples
- A 12-year-old plumbing business has a number printed on 200 fridge magnets distributed across the city. BYO Twilio means the AI receptionist can sit in front of that number without ever risking it.
- A dental practice ports its existing landline to Twilio (free port, 5-10 business days), then plugs RingDispatch in front. The patients calling the practice's existing number now reach the AI — and the practice still owns the number after cancellation.
- A new salon provisioning a fresh Twilio number for the first time — even net-new, the salon owns the number under their account, not under the AI vendor's.