Five Line Items That Move an AI Contact Center Quote
Same requirements, quotes more than two times apart. Call minutes, average handle time, model tier, integration scope, and the human path — broken down against published vendor rates.
Three quotes came back.
You sent the same requirements document to all three, and the totals are more than two times apart. The instinct is to ask which vendor padded the number. In practice the gap almost always opens in the same handful of places, because AI contact center cost is not a single line you can compare — it is a function sitting on top of a few assumptions.
This piece breaks down the five assumptions that move a quote the most. It is not a price list. Every figure below is a vendor's published rate, with the source and the date it was checked stated in the sentence.
All figures are vendors' published list prices retrieved 2026-08-03, not any vendor's actual quote or contracted rate.
1. You Are Billed in Minutes, Not Calls
Most cost models start with monthly call volume. Telecom billing does not. It runs on minutes, and that mismatch produces the first error.
Twilio's published Korea voice rates, checked on August 3, 2026, make the structure clear.
Twilio Korea voice — published list price (checked 2026-08-03)
Outbound · landline $0.0552 / min
Outbound · mobile $0.0524 / min
Inbound $0.0040 / min
Phone number from $1.15 / mo
Call recording $0.0025 / min (billed separately)
The striking part is the gap between outbound and inbound. Inbound costs roughly one-thirteenth of outbound per minute. At the same 30,000 calls a month, an organization taking inbound support calls and one running outbound campaigns start from entirely different telecom baselines.
Match the call count but not the channel direction, and you are comparing two different businesses.
