telephony_kminutes, US dollars per 1,000 connected call minutes, and shown per minute. This is the carrier leg: what it costs to put the call on the phone network, before anything transcribes or generates a word. Pick a vendor in the sidebar to see that vendor alone.
This is a line you pay on top, not instead. An agent on a phone number pays a carrier for the minutes AND pays for speech-to-text, the model and text-to-speech, or for a bundled agent minute that contains them. Direction and number type are both in the model id because both change the rate, and not in the same direction: receiving on toll-free costs more than dialling out, while local is the other way round. Rates are per country; the id carries the country.
estimatedthis rate is not the meter the vendor bills on, so it will not reconcile against an invoice. Either the model is billed in another unit and this figure is the vendor restating it, or the vendor publishes only a floor (“starting at”) or a range. Useful for comparison and capacity planning, not for billing.
verified, imported, and seed mean is on How Fresh?.